The correct answer is (a) President of India.
The President of India is the head of state of India and the supreme commander of the Indian Armed Forces. The President is elected by an electoral college consisting of elected members of both houses of Parliament and the legislative assemblies of all states. The President’s term of office is five years.
The Vice President of India is the second-highest constitutional office in India. The Vice President is elected by an electoral college consisting of elected members of both houses of Parliament and the legislative assemblies of all states. The Vice President’s term of office is five years.
The Speaker of the Lok Sabha is the presiding officer of the Lok Sabha, the lower house of the Parliament of India. The Speaker is elected by the members of the Lok Sabha. The Speaker’s term of office is coterminous with the Lok Sabha.
The Prime Minister of India is the head of government of India. The Prime Minister is appointed by the President of India and is the leader of the party or coalition that has a majority in the Lok Sabha. The Prime Minister’s term of office is coterminous with the Lok Sabha.
The President of India presides over the Joint Session of the Lok Sabha and the Rajya Sabha. The Joint Session is convened by the President when there is a disagreement between the two houses on a bill. The President also has the power to dissolve the Lok Sabha.