The correct answer is: The Governor.
The Governor is the head of state of Jammu and Kashmir. He 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 veto legislation.
The Chief Minister is the head of government of Jammu and Kashmir. He is elected by the members of the Legislative Assembly. The Chief Minister has the power to appoint the members of his cabinet, and to recommend to the Governor the dissolution of the Legislative Assembly.
The Advocate General is the chief legal adviser to the Government of Jammu and Kashmir. He is appointed by the Governor on the advice of the Chief Minister. The Advocate General has the power to represent the Government of Jammu and Kashmir in all courts of law.
The President of India is the head of state of India. He 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 (the lower house of Parliament), and to veto legislation.