The correct answer is B. Gopinath Bordoloi.
Gopinath Bordoloi was the first Chief Minister of Assam. He was born on 30 November 1890 in Gohpur, Assam. He was a freedom fighter and a member of the Indian National Congress. He was the Chief Minister of Assam from 1937 to 1950. He is considered to be the architect of modern Assam.
Tarun Ram Phukan was a freedom fighter and a member of the Indian National Congress. He was the Chief Minister of Assam from 1946 to 1947.
Bishnuram Medhi was a freedom fighter and a member of the Indian National Congress. He was the Chief Minister of Assam from 1950 to 1952.
A. Tarun Ram Phukan was not the first Chief Minister of Assam. He was the Chief Minister of Assam from 1946 to 1947.
B. Gopinath Bordoloi was the first Chief Minister of Assam. He was the Chief Minister of Assam from 1937 to 1950.
C. Bishnuram Medhi was not the first Chief Minister of Assam. He was the Chief Minister of Assam from 1950 to 1952.
D. None of the above is the correct answer. The first Chief Minister of Assam was Gopinath Bordoloi.