Solution:Article 53 of the Constitution of India 'provides specifically the position of President as, "all the executive power of the Union shall be vested in the President a and shall be exercised by him either directly or through officers subordinate to him accordance with this constitution".As in all democracies, the Indian Armed Forces are controlled by the elected political leadership of the Nation, the Government of India. He is responsible for the appointment of the chiefs of all three categories of defence: the Army, the Navy, and the Air Force. Therefore, option (a) is correct.