Correct option is B
· The Constituent Assembly of India held its first session on 9th December 1946 in New Delhi.
· In this historic session, Dr. Sachchidananda Sinha was elected as the temporary chairman of the Assembly.
· Later, on 11th December 1946, Dr. Rajendra Prasad was elected as the permanent chairman (President) of the Constituent Assembly.
· The primary objective of the Constituent Assembly was to draft the Constitution of India, which was eventually adopted on 26th November 1949, and came into effect on 26th January 1950.
