The correct answer is (a). The President is not an integral part of Parliament. The President is the head of state of India, and 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 Prime Minister and other members of the Council of Ministers, to dissolve Parliament, to veto legislation, and to declare war. However, the President’s powers are limited by the Constitution, and the President can be removed from office by impeachment.
The Vice-President is the second-highest constitutional office in India, after the President. The Vice-President is elected by an electoral college consisting of members of both houses of Parliament. The Vice-President is the ex officio Chairman of the Rajya Sabha, and can also act as President if the President is unable to discharge his duties.
The Lok Sabha is the lower house of the Parliament of India. It is directly elected by the people of India, and has a maximum strength of 552 members. The Lok Sabha is responsible for making laws, approving the budget, and overseeing the government.
The Rajya Sabha is the upper house of the Parliament of India. It is indirectly elected by the members of the legislative assemblies of the states and the Union Territories. The Rajya Sabha has a maximum strength of 250 members, of which 12 are nominated by the President. The Rajya Sabha is responsible for discussing and amending bills passed by the Lok Sabha, and for providing a forum for debate on national issues.