Correct Answer: (a) 9th December, 1946
Solution:The Indian Constituent Assembly was established with the commencement of its first meeting on December 9, 1946. The first session of the Constituent Assembly began on 9 December 1946, and ended on 23 December, 1946. The session was attended by 207 Members (according to Rajya Sabha Website). In the fifth meeting, Pandit Jawaharlal Nehru laid down the objective resolution.