Who was the first interim President of the constitutional assembly, in whose leadership the first meeting of the constitutional assembly took place on 9 Dec 1946?

Who was the first interim President of the constitutional assembly, in

1.	Who was the first interim President of the constitutional assembly, in whose leadership the first meeting of the constitutional assembly took place on 9 Dec 1946?
A.	Sachidanand Sinha
B.	JL Nehru
C.	BR Ambedkar
D.	Rajendra Prasad
Answer» B. JL Nehru