A prime minister in a parliamentary democracy is chosen by?

In a parliamentary democracy, the Prime Minister is chosen by the members of the parliament, who are elected by the citizens of the country. The prime minister is usually the leader of the majority party in the parliament. If there is no clear majority party, the prime minister may be chosen through negotiations and alliances between different parties. In some cases, the head of state, such as a president or monarch, may appoint a prime minister, but this is usually done in consultation with the parliament.