Correct Answer: (d) Dr. Rajendra Prasad
Solution:The Second Round Table Conference was held in London from 7 September to 1 December 1931. Mahatma Gandhi represented Congress in this conference. Besides him, Sarojini Naidu, Annie Besant, Madan Mohan Malviya, Mahadev Desai, B.R. Ambedkar, etc., took part in this conference. Jawaharlal Nehru did not participate in this conference. Pyarelal Nayyar participated as the private secretary of Mahatma Gandhi.