Please answer the following question: Information:  - 11 Downing Street (sometimes referred to as just Number 11) is the official residence of Britain's Chancellor of the Exchequer (who traditionally also has the title of Second Lord of the Treasury). The residence, in Downing Street in London, was built alongside the official residence of the Prime Minister at Number 10 in 1682.  - Her Majestys Exchequer or just the Exchequer is a term used in the civil service of the United Kingdom for the accounting process of central government and for the government's "current account" i.e. money held from taxation and other government revenues in the Consolidated Fund It can be found used in various financial documents including the latest departmental and agency annual accounts.  - The Prime Minister of the United Kingdom is the head of Her Majesty's Government in the United Kingdom. The prime minister (informal abbreviation: PM) and Cabinet (consisting of all the most senior ministers, most of whom are government department heads) are collectively accountable for their policies and actions to the Monarch, to Parliament, to their political party and ultimately to the electorate. The office is one of the Great Offices of State. The , Theresa May, leader of the Conservative Party, was appointed by the Queen on 13 July 2016.  - 9 Downing Street is one of the buildings situated on Downing Street in the City of Westminster in London, England.  - The Great Offices of State in the United Kingdom are the four most senior and prestigious posts in the British government. They are the Prime Minister, Chancellor of the Exchequer, Foreign Secretary and Home Secretary. According to convention, when the Prime Minister names his or her Cabinet, either after a general election or a mid-term reshuffle, the first Cabinet ministers to be announced are the Chancellor, the Foreign Secretary and the Home Secretary.  - A legislature is a deliberative assembly with the authority to make laws for a political entity such as a country or city. Legislatures form important parts of most governments; in the separation of powers model, they are often contrasted with the executive and judicial branches of government.  - Her Majesty's Government (HMG), commonly referred to as the UK government or British government, is the central government of the United Kingdom of Great Britain and Northern Ireland.  - 10 Downing Street, colloquially known in the United Kingdom as Number 10, is the headquarters of Government of the United Kingdom and the official residence and office of the First Lord of the Treasury, a post which, for much of the 18th and 19th centuries and invariably since 1905, has been held by the Prime Minister.  - Theresa Mary May, (born 1 October 1956) is the current Prime Minister of the United Kingdom and Leader of the Conservative Party, having served as both since July 2016. She has been the Member of Parliament (MP) for Maidenhead since 1997. May identifies as a one-nation conservative and has been characterised as a liberal conservative. She is the second female Prime Minister and Conservative Party leader after Margaret Thatcher.  - The Chief Whip is a political office in some legislatures whose task is to administer the whipping system that tries to ensure that members of the party attend and vote as the party leadership desires. In British politics, the Chief Whip of the governing party in the House of Commons is usually also appointed as Parliamentary Secretary to the Treasury, a Cabinet position. The Government Chief Whip has an official residence at 12 Downing Street. However, the Chief Whip's office is currently located at 9 Downing Street.  - The Parliamentary Secretary to the Treasury is a junior ministerial position in the British Government. However, the office is now attached to the Treasury in name only. The holder is usually the Government Chief Whip in the House of Commons. The office can be seen as a sinecure, allowing the Chief Whip to draw a government salary, attend Cabinet, and use a Downing Street residence.  - The post of Lord High Treasurer or Lord Treasurer was an English government position and has been a British government position since the Acts of Union of 1707. A holder of the post would be the third-highest-ranked Great Officer of State, below the Lord High Steward and the Lord High Chancellor.  - A prime minister is the most senior minister of cabinet in the executive branch of government, often in a parliamentary or semi-presidential system. In many systems, the prime minister selects and may dismiss other members of the cabinet, and allocates posts to members within the government. In most systems, the prime minister is the presiding member and chairman of the cabinet. In a minority of systems, notably in semi-presidential systems of government, a prime minister is the official who is appointed to manage the civil service and execute the directives of the head of state. In parliamentary systems fashioned after the Westminster system, the prime minister is the presiding and actual head of government and head of the executive branch. In such systems, the head of state or the head of state's official representative (i.e. the monarch, president, or governor-general) usually holds a largely ceremonial position, although often with reserve powers.  - 12 Downing Street is one of the buildings situated on Downing Street in the City of Westminster in London, England. It has been traditionally used as the office of the Chief Whip although the upper floor forms part of the residential apartment for the Prime Minister of the United Kingdom. It has been owned and used by the Crown since 1803, first housing the Judge Advocate General of the Armed Forces and then the Colonial Office, before the office of the Chief Whip moved into the premises in 1879 until 2001. It is a Grade II listed building.  - The First Lord of the Treasury is the head of the commission exercising the ancient office of Lord High Treasurer in the United Kingdom, and is now always also the Prime Minister. This office is not equivalent to the usual position of the "Treasurer" in other governments; the closer equivalent of a Treasurer in the United Kingdom is the Chancellor of the Exchequer, who is the Second Lord of the Treasury.  - Downing Street in London , England , has for more than three hundred years housed the official residences of two of the most senior British Cabinet ministers : the First Lord of the Treasury , an office now synonymous with that of Prime Minister of the United Kingdom ; and the Second Lord of the Treasury , an office held by the Chancellor of the Exchequer . The Prime Minister 's official residence is 10 Downing Street ; the Chancellor 's official residence is next door at Number 11 . The Government 's Chief Whip has an official residence at Number 12 , though the current Chief Whip 's residence is at Number 9 . Downing Street is located in Whitehall in central London , a few minutes ' walk from the Houses of Parliament and a little farther from Buckingham Palace . The street was built in the 1680s by Sir George Downing ( 1632 -- 1689 ) , on the site of a mansion called Hampden House . The houses on the south side of the street were demolished in the nineteenth century to make way for government offices , now occupied by the Foreign and Commonwealth Office . `` Downing Street '' is often used as a metonym for the Government of the United Kingdom .  - The Second Lord of the Treasury is a member of the commission exercising the ancient office of Lord High Treasurer in the United Kingdom. Since 1827, the Chancellor of the Exchequer has always simultaneously held the office of Second Lord of the Treasury when that person has not also been the Prime Minister. The official residence of the Second Lord of The Treasury is 11 Downing Street.  - The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a sovereign country in western Europe. Lying off the north-western coast of the European mainland, it includes the island of Great Britain (the name of which is also loosely applied to the whole country), the north-eastern part of the island of Ireland, and many smaller islands. Northern Ireland is the only part of the UK that shares a land border with another sovereign statethe Republic of Ireland. Apart from this land border, the UK is surrounded by the Atlantic Ocean, with the North Sea to its east, the English Channel to its south and the Celtic Sea to its south-south-west, giving it the 12th-longest coastline in the world. The Irish Sea lies between Great Britain and Ireland. With an area of , the UK is the 78th-largest sovereign state in the world and the 11th-largest in Europe. It is also the 21st-most populous country, with an estimated 65.1 million inhabitants. Together, this makes it the fourth most densely populated country in the European Union.  - The Chancellor and Under-Treasurer of Her Majesty's Exchequer, commonly known as the Chancellor of the Exchequer, is a senior official within the Government of the United Kingdom and head of Her Majesty's Treasury. The office is a British Cabinet-level position.    After reading the paragraphs above, we are interested in knowing the entity with which 'downing street' exhibits the relationship of 'located in the administrative territorial entity'. Find the answer from the choices below.  Choices: - atlantic ocean  - central  - city of westminster  - england  - european union  - ireland  - maidenhead  - mainland  - mary  - most  - northern ireland  - of  - post  - street  - union  - united kingdom  - westminster
Answer:
city of westminster