Passage: The cabinet is traditionally drawn from members of the prime minister's party or coalition and mostly from the House of Commons but always from both legislative houses, the cabinet being responsible to both. Executive power is exercised by the prime minister and cabinet, all of whom are sworn into the Privy Council of the United Kingdom, and become Ministers of the Crown. The current Prime Minister is Theresa May, who has been in office since 13 July 2016. May is also the leader of the Conservative Party. For elections to the House of Commons, the UK is divided into 650 constituencies, each electing a single member of parliament (MP) by simple plurality. General elections are called by the monarch when the prime minister so advises. Prior to the Fixed-term Parliaments Act 2011, the Parliament Acts 1911 and 1949 required that a new election must be called no later than five years after the previous general election.The Conservative Party, the Labour Party and the Liberal Democrats (formerly as the Liberal Party) have, in modern times, been considered the UK's three major political parties, representing the British traditions of conservatism, socialism and liberalism, respectively. However, in both the 2015 and 2017 general elections, the Scottish National Party was the third-largest party by number of seats won, ahead of the Liberal Democrats. Most of the remaining seats were won by parties that contest elections only in one part of the UK: Plaid Cymru (Wales only); and the Democratic Unionist Party and Sinn Féin (Northern Ireland only). In accordance with party policy, no elected Sinn Féin members of parliament have ever attended the House of Commons to speak on behalf of their constituents because of the requirement to take an oath of allegiance to the monarch.

Question: Those who are sworn in become what?
Ministers of the Crown