Answer the following question: Information:  - Vollebekk is a station on Grorud Line ( line 5 ) of the Oslo Metro . It is located between the stations of Risløkka and Linderud and is 7.1 kilometers ( 4.4 mi ) from Stortinget . The station is among the original ones on Grorudbanen , and opened on 10 October 1966 . Peer Qvaam was the station 's architect . The local road Lunden passes under the station immediately north of the station . There is no major bus connection , although there is a bus stop on the Østre Aker Vei highway to the south . The railway station Alna is also nearby and there are plans to connect the two stations by means of a pedestrian and bicycle path in 2009 .  - Romsås was an independent borough of the city of Oslo, Norway, until January 1, 2004, when it as a result of a merger became part of the larger Grorud borough. By 1850 Romsås was one of the biggest farms in Østre Aker and the name Romsås came from the farm.  With the expansion of Oslo city after the second World War, Oslo Kommune allowed OBOS to build a new borough in 1967 and this project was started in 1969. The new borough was divided into 6 neighborhoods (Tiurleiken, ,Svattjern Røverkollen, Orremyr, Emanuelfjell and the largest: Ravnkollen  - The Grorud Line is a line on the Oslo Metro between Tøyen and Vestli in Oslo, Norway. Built as a mix of underground, at ground level and as an elevated line, it runs through the northern part of Groruddalen, serving such neighborhoods as Grorud, Romsås and Stovner. Line 5 runs along the entire line four times per hour. Line 4 runs between Vestli and Økern before branching off on the Løren Line to get onto the Ring Line. With 40,000 daily riders, the Grorud Line is the busiest branch of the metro.  - St. Hanshaugen (Norwegian for St. John's Hill) is a district of the city of Oslo, Norway.  - Norway (; Norwegian: (Bokmål) or (Nynorsk); Sami: "Norgga"), officially the Kingdom of Norway, is a sovereign and unitary monarchy whose territory comprises the western portion of the Scandinavian Peninsula plus the island Jan Mayen and the archipelago of Svalbard. The Antarctic Peter I Island and the sub-Antarctic Bouvet Island are dependent territories and thus not considered part of the Kingdom. Norway also lays claim to a section of Antarctica known as Queen Maud Land. Until 1814, the Kingdom included the Faroe Islands (since 1035), Greenland (1261), and Iceland (1262). It also included Shetland and Orkney until 1468. It also included the following provinces, now in Sweden: Jämtland, Härjedalen and Bohuslän.  - Bærum is a municipality in Akershus county, Norway. The administrative centre of the municipality is the town of Sandvika. Bærum was established as a municipality on 1 January 1838. A suburb of Oslo, Bærum is located on the west coast of the city.  - Oslo is the capital and the most populous city in Norway. It constitutes both a county and a municipality. Founded in the year 1040, and established as a "kaupstad" or trading place in 1048 by Harald Hardrada, the city was elevated to a bishopric in 1070 and a capital under Haakon V of Norway around 1300. Personal unions with Denmark from 1397 to 1523 and again from 1536 to 1814 and with Sweden from 1814 to 1905 reduced its influence. After being destroyed by a fire in 1624, the city was moved closer to Akershus Fortress during the reign of Christian IV of Denmark and renamed Christiania in his honour. It was established as a municipality ("formannskapsdistrikt") on 1 January 1838. Following a spelling reform, it was known as Kristiania from 1877 to 1925, at which time its original Norwegian name was restored.  - Sporveien T-banen AS is a limited company that is responsible for operating Oslo Metro, the rapid transit in Oslo, Norway. The company is owned by Sporveien, which is owned by the city council. Sporveien operates on a contract with Ruter, the public transport administration in Oslo and Akershus.  - The Oslo Metro (or or simply ) is the rapid transit system of Oslo, Norway, operated by Sporveien T-banen on contract from the transit authority Ruter. The network consists of five lines that all run through the city centre, with a total length of , serving 101 stations of which 17 are underground or indoors. In addition to serving 14 out of the 15 boroughs of Oslo (all except St. Hanshaugen), two lines run to Bærum. In 2015, the system had an annual ridership of 94.4 million.  - The Løren Line is a line of the Oslo Metro. Located entirely underground, it runs through the neighborhoods of Sinsen, Løren and Økern in Bjerke, creating a connection between the Ring Line with the Grorud Line. The line features one station, Løren. It is served by metro trains which run down the Grorud Line and then connect to the Ring Line. It allows for higher capacity on the metro as more passengers a transported via the Ring Line instead of through the congested Common Tunnel. Construction started in June 2013 and the line opened on 3 April 2016. Route. The Løren Line is a long section of Oslo Metro between Sinsen and Økern, connecting the Ring Line with the Grorud Line. It consists of one intermediate station, Løren. The line runs entirely in a tunnel, consisting of of tunnel through bedrock and in a concrete culvert. The line runs north a mostly parallel to the mainline Alna Line. In the west the line branches off the Ring Line in a tunnel section south of Sinsen. Each track of the Løren Line forks off in a separate tunnel and then head east while the Ring Line turns southwest. The line runs in two tubes to Løren Station, after which they merge into a single tube. The station is situated below the surface in the redevelopment area of Lørenbyen. The station has an area of and has an entrance from each end. The line then makes a U-turn and branches into the Grorud Line between the stations of Hasle and Økern.  - Grorud is a district of the city of Oslo, Norway. The district contains the Ammerud, Grorud, Kalbakken, Rødtvet, Nordtvet and Romsås areas. To the north of the district is the forest of Lillomarka. The district is the smallest in Oslo, with fewer than 30 000 inhabitants.  - Stovner is a district located to the far north east of the city of Oslo, Norway. Historically, Stovner was the name of a farm in the municipal borough "Østre Aker". Østre Aker merged with Oslo in 1948, both instigated and followed by a massive expansion of the city settlement. Today's Stovner borough is constructed atop the home fields of the Stovner farm, the first record of which dates back to the 14th century, as well as on the fields of several other farms that were situated in the area covered by the borough. The bulk of the modern high-rise structures were built by Selvaag and completed in the first half of the 1970s, together with several schools, a subway line into central Oslo, and an administrative center for the district. The last three stations of Grorudbanen  Rommen, Stovner and Vestli  are in the Stovner borough.  - Ruter AS is the public transport authority for Oslo and Akershus counties in Norway. Formally a limited company  60% of the shares in which are owned by the Oslo county municipality and 40% by that of Akershus  it is responsible for administrating, funding, and marketing (but not operating) public transport in the two counties, including buses, the Oslo Metro ("T-banen i Oslo"), Oslo Trams ("Trikken i Oslo"), and ferry services. Ruter also holds agreements with the Norwegian State Railways concerning the regulation of fares on commuter train services operated within the two counties.  - Rapid transit, also known as heavy rail, metro, subway, tube, or underground, is a type of high-capacity public transport generally found in urban areas. Unlike buses or trams, rapid transit systems are electric railways that operate on an exclusive right-of-way, which cannot be accessed by pedestrians or other vehicles of any sort, and which is often grade separated in tunnels or on elevated railways.    After reading the paragraphs above, we are interested in knowing the entity with which 'vollebekk ' exhibits the relationship of 'located in the administrative territorial entity'. Find the answer from the choices below.  Choices: - akershus  - bjerke  - bærum  - center  - denmark  - district  - east  - greenland  - grorud  - hill  - härjedalen  - jämtland  - most  - north  - norway  - of  - oslo  - shetland  - southwest  - stovner  - sweden  - west
Answer:
bjerke