Detailed Solution:
The correct answer is “Both (A) and (R) are true and (R) is correct explanation of (A)”.
Article 79 of the Constitution of India states that the Parliament of the Union is made up of the President and two houses: the Council of States (Rajya Sabha) and the House of the People (Lok Sabha).
A bill passed by the two Houses of Parliament cannot become a law without the assent of the President.