Answer: (Detailed Solution Below)
Option D: Vallabhbhai Patel
Detailed Solution:
The correct answer is “Vallabhbhai Patel”.
The Karachi Session of the Indian National Congress, held in 1931, was presided over by Sardar Vallabhbhai Patel.
The Karachi session is memorable for a resolution on Fundamental Rights and the National Economic Programme. The resolution guaranteed basic civil and political rights to the people.