The correct answer is D. All of above.
The Union Executive consists of the President, the Vice President, the Prime Minister, the Council of Ministers, and the Attorney General of India.
The President is the head of state of India. The Vice President is the second-highest constitutional office in India. The Prime Minister is the head of government of India. The Council of Ministers is a group of ministers who are responsible for the day-to-day running of the government. The Attorney General of India is the highest law officer of the government of India.
The President is elected by an electoral college consisting of members of both houses of Parliament and the legislative assemblies of the states. The Vice President is elected by an electoral college consisting of members of both houses of Parliament. The Prime Minister is appointed by the President and holds office at the pleasure of the President. The Council of Ministers is appointed by the Prime Minister and holds office at the pleasure of the Prime Minister. The Attorney General of India is appointed by the President on the advice of the Prime Minister.
The Union Executive is responsible for the implementation of the laws passed by Parliament. It also has the power to make ordinances, which have the force of law, when Parliament is not in session. The Union Executive is also responsible for the conduct of foreign affairs and the defence of India.