Please answer the following question: Information:  - Lake Walter E. Long (also known as Decker Lake) is a power plant cooling reservoir on Decker Creek in Austin, Texas. The reservoir was officially impounded in 1967 and serves to provide water for turbines used in the production of electricity from petroleum-based fuels. The dam and the lake are managed by the City of Austin. Surrounding Lake Walter E. Long is the city of Austin's Lake Walter E. Long Metropolitan Park, a popular recreational destination.  - Galway Bay (Irish: "Loch Lurgain" or "Cuan na Gaillimhe") is a large bay (or sea lough) on the west coast of Ireland, between County Galway in the province of Connacht to the north and the Burren in County Clare in the province of Munster to the south. Galway city is located on the northeast side of the bay. It is about long and from to in breadth. The Aran Islands ("Oileáin Árann") are to the west across the entrance and there are numerous small islands within the bay.   - id Software LLC (formerly id Software, Inc., ; see Company name) is an American video game developer headquartered in Dallas, Texas. The company was founded on February 1, 1991, by four members of the computer company Softdisk, programmers John Carmack and John Romero, game designer Tom Hall, and artist Adrian Carmack (no relation to John Carmack). Business manager Jay Wilbur was also involved.  - Bethesda Softworks LLC is an American video game publisher based in Rockville, Maryland. The company was founded by Christopher Weaver in 1986 in Bethesda, Maryland as a division of Media Technology Limited, and nowadays is a wholly owned subsidiary of ZeniMax Media. Originally a video game developer itself, Bethesda Softworks now acts as the publisher for their in-house development team, Bethesda Game Studios, and ZeniMax Media's subsidiaries, ZeniMax Online Studios, id Software, Arkane Studios, MachineGames, Tango Gameworks and BattleCry Studios.  - Maryland Route 45 (MD 45) is a state highway in the U.S. state of Maryland. Known for most of its length as York Road, the state highway runs from U.S. Route 1 (US 1) in Baltimore north to the Pennsylvania state line in Maryland Line, where the highway continues as SR 3001. MD 45 is the primary highway between Downtown Baltimore and Towson, the county seat of Baltimore County. North of Interstate 695, the state highway parallels I-83 and serves the suburban communities of Lutherville, Timonium, Cockeysville, and Hunt Valley. MD 45 also connects the northern Baltimore County communities of Hereford and Parkton. The state highway is maintained by the Maryland State Highway Administration in Baltimore County and by the Baltimore City Department of Transportation in the city, where the highway also follows Greenmount Avenue.  - Kentucky, officially the Commonwealth of Kentucky, is a state located in the east south-central region of the United States. Kentucky is one of four U.S. states constituted as a commonwealth (the others being Virginia, Pennsylvania, and Massachusetts). Originally a part of Virginia, in 1792 Kentucky became the 15th state to join the Union. Kentucky is the 37th most extensive and the 26th most populous of the 50 United States.  - ZeniMax Media Inc. is an American media company that develops and publishes video games through its subsidiaries. ZeniMax is known for being the owner of Arkane Studios (developer of "Dishonored" and "Prey"), BattleCry Studios (developer of "BattleCry"), id Software (developer of "Doom" series, "Quake" series and "Rage"), MachineGames (developer of "Wolfenstein" series), Tango Gameworks (developer of "The Evil Within"), Bethesda Softworks (developer and publisher of "The Elder Scrolls" series and "Fallout" series) and ZeniMax Online Studios. ZeniMax is headquartered in Rockville, Maryland, with offices in North America, Europe, Asia and Australia.  - Lady Bird Lake (formerly Town Lake) is a reservoir on the Colorado River in Downtown Austin, Texas, in the United States. It was created in 1960 by the construction of Longhorn Dam and is owned and operated by the City of Austin in cooperation with the Lower Colorado River Authority. The surface area of the lake is , and it is used primarily for flood control and recreation. Located on the lake's shoreline are various hotels and apartments, as well as the Auditorium Shores park and the Austin Hike and Bike Trail. It is named, after former First and Second Lady of the United States Lady Bird Johnson, wife of President Lyndon B. Johnson.   - Arkane Studios SASU (formerly Arkane Studios SA) is a French video game developer based in Lyon, France. It was founded in 1999, and released its first game, "Arx Fatalis", in 2002. Arkane Studios opened a second studio, Arkane Studios Austin, in Austin, Texas in July 2006.  - A U.S. state is a constituent political entity of the United States of America. There are 50 states, which are bound together in a union with each other. Each state holds administrative jurisdiction over a defined geographic territory, and shares its sovereignty with the United States federal government. Due to the shared sovereignty between each state and the federal government, Americans are citizens of both the federal republic and of the state in which they reside. State citizenship and residency are flexible, and no government approval is required to move between states, except for persons covered by certain types of court orders (e.g., paroled convicts and children of divorced spouses who are sharing custody).  - Rockville is a city located in the central region of Montgomery County, Maryland. It is the county seat and is a major incorporated city of Montgomery County and forms part of the BaltimoreWashington metropolitan area. The 2010 census tabulated Rockville's population at 61,209, making it the third largest incorporated city in Maryland, behind Baltimore and Frederick. Rockville is the largest incorporated city in Montgomery County, Maryland, although the nearby census-designated place of Germantown is more populous.  - Interstate 83 (abbreviated I-83) is an Interstate Highway in the Eastern United States. Its southern terminus is in Baltimore, Maryland at a signalized intersection with Fayette Street; its northern terminus is in Harrisburg, Pennsylvania at I-81.  - Longitude (or , Australian and British also ), is a geographic coordinate that specifies the east-west position of a point on the Earth's surface. It is an angular measurement, usually expressed in degrees and denoted by the Greek letter lambda (). Meridians (lines running from the North Pole to the South Pole) connect points with the same longitude. By convention, one of these, the Prime Meridian, which passes through the Royal Observatory, Greenwich, England, was allocated the position of zero degrees longitude. The longitude of other places is measured as the angle east or west from the Prime Meridian, ranging from 0° at the Prime Meridian to +180° eastward and 180° westward. Specifically, it is the angle between a plane containing the Prime Meridian and a plane containing the North Pole, South Pole and the location in question. (This forms a right-handed coordinate system with the axis (right hand thumb) pointing from the Earth's center toward the North Pole and the axis (right hand index finger) extending from Earth's center through the equator at the Prime Meridian.)  - "Built specifically to contain floodwaters" in a flash-flood prone region, Lake Travis is a reservoir on the Colorado River in central Texas in the United States. The reservoir was formed in 1942 by the construction of Mansfield Dam on the western edge of Austin, Texas by the Lower Colorado River Authority (LCRA). Highlighting its purpose, even during its construction -- after a severe flood in July 1938 -- the height of the dam was raised to add storage capacity for floodwaters.  - Texas is the second largest state in the United States by both area and population. Geographically located in the south central part of the country, Texas shares borders with the U.S. states of Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the west, and the Mexican states of Chihuahua, Coahuila, Nuevo León, and Tamaulipas to the southwest, while the Gulf of Mexico is to the southeast.  - Connacht or Connaught (or "Cúige Chonnacht") is one of the provinces of Ireland, situated in the west of the country. Up to the 9th century it consisted of several independent major kingdoms (Lúighne, Uí Maine, and Iarthar Connacht).   - County Galway is a county in Ireland. In the West of Ireland, it is part of the province of Connacht (English spelling: Connaught) and is named after the city of Galway. There are several Irish-speaking areas in the west of the county. The population of the county is 258,552 according to the 2016 census. While it is named after the city of Galway, a different authority governs that territory. The county proper is administered by Galway County Council.  - The Loch Raven Reservoir is a reservoir that provides drinking water for the City of Baltimore and most of Baltimore County, Maryland. It is fed by the Big Gunpowder Falls river, and has a capacity of of water.  - A smartphone is a mobile phone (also known as cell phones or cell mobiles) with an advanced mobile operating system that combines features of a personal computer operating system with other features useful for mobile or handheld use. Smartphones, which are usually pocket-sized, typically combine the features of a mobile phone, such as the abilities to place and receive voice calls and create and receive text messages, with those of other popular digital mobile devices like personal digital assistants (PDAs), such as an event calendar, media player, video games, GPS navigation, digital camera and digital video camera. Smartphones can access the Internet and can run a variety of third-party software components ("apps" from Google Play, Apple App Store, etc). They typically have a color display with a graphical user interface that covers more than 76% of the front surface. The display is almost always a touchscreen and sometimes additionally a touch-enabled keyboard like the Priv/Passport BlackBerrys, which enables the user to use a virtual keyboard to type words and numbers and press onscreen icons to activate "app" features.  - A massively multiplayer online game (MMOG or MMO) is an online game which is capable of supporting large numbers of players, typically from hundreds to thousands, simultaneously in the same instance (or world). MMOs usually feature a huge, persistent open world, although some games differ. These games can be found for most network-capable platforms, including the personal computer, video game console, or smartphones and other mobile devices.  - Austin is the capital of the U.S. state of Texas and the seat of Travis County. It is the city in the U.S. and the in Texas. It is the fastest growing city in the United States and the second most populated capital city after Phoenix, Arizona. As of the U.S. Census Bureau's July 1, 2015 estimate, Austin has a population of 931,830. Located in in the foothills of Texas Hill Country, the city is home to numerous lakes, rivers, and waterways including Lady Bird Lake, Barton Springs, McKinney Falls, the Colorado River, Lake Travis, and Lake Walter E. Long. It is the cultural and economic center of the metropolitan area, which had an estimated population of 2,064,149 as of June 1, 2016.  - A personal computer (PC) is a multi-purpose electronic computer whose size, capabilities, and price make it feasible for individual use. PCs are intended to be operated directly by a person using a graphical user interface such as Windows. The versatility of a personal computer is greatly enhanced by the use of peripheral devices such as a keyboard, monitor, printer, mouse, speakers, and an external hard drive.  - Phoenix is the capital and most populous city of the U.S. state of Arizona. With 1,563,025 people, Phoenix is the sixth most populous city nationwide, the most populous state capital in the United States, and the only state capital with a population of more than one million residents.  - An online game is a video game that is either partially or primarily played through the Internet or another computer network. Online games are ubiquitous on modern gaming platforms, including PCs, consoles and mobile devices, and span many genres, including first-person shooters, strategy games and massively multiplayer online role-playing games (MMORPG).  - The Texas Hill Country is a 25-county region of Central Texas and South Texas featuring karst topography and tall rugged hills consisting of thin layers of soil atop limestone or granite. It also includes the Llano Uplift and the second largest granite dome in the United States, Enchanted Rock. The Hill Country reaches into portions of the two major metropolitan areas, especially in San Antonio's northern suburbs and the western half of Travis County, ending southwest of Downtown Austin. The region is the eastern portion of the Edwards Plateau and is bound by the Balcones Fault on the east and the Llano Uplift to the west and north. The terrain is punctuated by a large number of limestone or granite rocks and boulders and a thin layer of topsoil, which makes the region very dry and prone to flash flooding. The Texas Hill Country is also home to several native types of vegetation, such as various yucca, prickly pear cactus, cedar scrub, and the dry Southwestern tree known as the Texas live oak.  - The River Corrib (Irish: "Abhainn na Gaillimhe") in the west of Ireland flows from Lough Corrib through Galway to Galway Bay. The river is among the shortest in Europe, with only a length of six kilometres from the lough to the Atlantic. It is popular with local whitewater kayakers as well as several rowing clubs and pleasure craft. The depth of this river reaches up to 94 feet.  - Lough Corrib is a lake in the west of Ireland. The River Corrib or Galway river connects the lake to the sea at Galway. It is the second largest lough in the island of Ireland (after Lough Neagh). It covers 176 km² and lies mostly in County Galway with a small area of its northeast corner in County Mayo.  - Galway City Council is the authority responsible for local government in the city of Galway in Ireland. As a city council, it is governed by the Local Government Act 2001. The council is responsible for housing and community, roads and transportation, urban planning and development, amenity and culture, and environment. The council has 18 elected members. Elections are held every five years and are by single transferable vote. The head of the council has the title of Mayor. The city administration is headed by a Chief Executive, Brendan McGrath. The council meets at City Hall, College Road, Galway.  - Galway is a city in the West of Ireland in the province of Connacht. Galway City Council is the local authority for the city. Galway lies on the River Corrib between Lough Corrib and Galway Bay and is surrounded by County Galway. It is the fourth most populous urban area in the Republic of Ireland and the sixth most populous city in the island of Ireland.  - ZeniMax Online Studios is a subsidiary of ZeniMax Media Inc. specializing in the development of a massively multiplayer online game . The company is in the process of developing The Elder Scrolls Online . ZeniMax Online Studios has around 250 employees . In addition to the main Hunt Valley , Maryland based office , ZeniMax Online also maintains a customer support center in Galway , Ireland as well as an additional office in Austin , Texas .  - Hunt Valley is an unincorporated community in Baltimore County, Maryland, United States. Its traditional name was based on being just east of Maryland's traditional Horse Country (like the Kentucky Blue Grass region), and the site of the venerable Maryland Hunt Cup championship of steeplechase horse racing and jumping established 1894. It lies just north of the city of Baltimore, along the York Road (former old historic Baltimore-York Turnpike) which is now Maryland Route 45 off Interstate 83. The Loch Raven Reservoir nearby is an important drinking water resource and with its surrounding forested watershed is one of three reservoirs (Loch Raven, Prettyboy and Liberty) established for the City of Baltimore and its surrounding metropolitan areas in Baltimore County since the 1880s and expanded in the 1910s. Located at a latitude of 39.5° North and longitude 76.7° West.    After reading the paragraphs above, choose the best answer for the entity that related to 'zenimax online studios' with the relationship of 'headquarters location'.  Choices: - arizona  - asia  - austin  - baltimore  - bethesda  - central  - colorado  - dallas  - england  - galway  - greenwich  - hard  - hunt valley  - internet  - ireland  - kentucky  - león  - louisiana  - lyon  - maryland  - massachusetts  - media  - meridian  - mexico  - mobile  - montgomery  - munster  - pennsylvania  - phoenix  - rock  - rockville  - street  - texas  - trail  - united states of america  - virginia  - york
Answer:
rockville