The correct option is B 1930s
The Socialist thoughts became popular during 1930s in and out of Congress party. By 1934, a Socialist Group had clearly emerged in the congress. Most of the socialists were younger generation. They established Congress Socialist Party. Jaya Prakash Narayan became its General Secretary. Acharya Narendra Dev, Jawaharlal Nehru and Subhas chandra Bose were the other leaders. Though Nehru identified himself as Socialist, he was with Gandhiji. The Socialists organized the farmers and workers to attain social justice in Indian society. Jayaprakash Naryan, Ram Manohar Lohia and Aruna Asf Ali and other Socialist leaders took part in Quit India movement and performed major roles in its success and emerged as popular leaders.