The correct answer is Only B. Explanation & Key Takeaways: • In addition to the making of the Constitution and enacting of ordinary laws, the Constituent Assembly also performed the following functions: • It ratified India’s membership of the Commonwealth in May 1949. • It adopted the national flag on July 22, 1947. • It adopted the national anthem on January 24, 1950. • It adopted the national song on January 24, 1950. • It elected Dr Rajendra Prasad as the first President of India on January 24, 1950. Hence, statement A is not correct. • Once the constitution was ready and adopted, the assembly was dissolved. Hence, B is correct. • The first meeting of the Constituent Assembly of India took place on 9^(th) December 1946. • Dr Sachchidananda Sinha was the first interim president of the Constituent Assembly. • The Constituent Assembly took 2 years, 11 months, and 18 days to frame the constitution. • The Constitution of India was adopted on 26 November 1949 and the honourable members appended their signatures to it on 24 January 1950. In all, 284 members actually signed the Constitution. • Though the constitution came into force on 26 January 1950, some provisions relating to citizenship, elections, provisional parliament, temporary & transitional provisions were given immediate effect on 26 November 1949. • On 26 January 1950, the Constituent Assembly ceased to exist, transforming itself into the Provisional Parliament of India until a new Parliament was constituted in 1952. Hence, B is correct.