The head of the Karnataka state executive is the:

Prime Minister
President
Chief Minister
Governor

The correct answer is C) Chief Minister.

The Chief Minister is the head of the state executive in India. He/She is the leader of the party or coalition that has a majority in the Legislative Assembly of the state. The Chief Minister is responsible for the day-to-day administration of the state and is the chief advisor to the Governor.

The Prime Minister is the head of the central government in India. He/She is the leader of the party or coalition that has a majority in the Lok Sabha, the lower house of the Parliament of India. The Prime Minister is responsible for the day-to-day administration of the country and is the chief advisor to the President.

The President is the head of state of India. He/She is elected by an electoral college consisting of members of both houses of the Parliament and the legislative assemblies of the states. The President is the supreme commander of the armed forces and has the power to pardon criminals.

The Governor is the head of the state in India. He/She is appointed by the President on the advice of the central government. The Governor is the constitutional head of the state and has the power to dissolve the Legislative Assembly, appoint the Chief Minister and other ministers, and grant pardons.