The correct answer is: Governor.
The Governor is the head of state of Chhattisgarh. He/She is appointed by the President of India on the advice of the Central Government. The Governor has the power to dissolve the Legislative Assembly, appoint the Chief Minister and other Ministers, and to give assent to Bills passed by the Legislative Assembly.
The Chief Minister is the head of government of Chhattisgarh. He/She is elected by the members of the Legislative Assembly. The Chief Minister has the power to select the members of his/her Cabinet, and to advise the Governor on matters of administration.
The President of India is the head of state of India. He/She is elected by an electoral college consisting of members of both Houses of Parliament and the Legislative Assemblies of the States. The President has the power to appoint the Governors of the States, to dissolve the Lok Sabha, and to give assent to Bills passed by Parliament.
The Supreme Court Chief Justice is the head of the Supreme Court of India. He/She is appointed by the President of India on the advice of the Chief Justice of India. The Supreme Court Chief Justice has the power to decide cases involving the interpretation of the Constitution, and to give directions to the lower courts.