Exp) Option d is the correct answer.

In a parliamentary system, the prime minister is the head of government. Most parliamentary systems have a president or a monarch who is the nominal Head of state. In such a system, the role of president or monarch is primarily ceremonial and prime minister along with the cabinet wields effective power. The parliamentary executive derives its authority from parliament. The Council of Ministers is dependent on the support of the majority in the legislature. This also means that the Council of Ministers may be removed at any time and a new Council of Ministers will have to be put in place