Ramgarh session of Congress held in

The correct answer is: B. 1942

The Ramgarh session of the Indian National Congress was held in Ramgarh, Bihar, from 21 to 24 March 1942. The session was attended by over 15,000 delegates, including Mahatma Gandhi, Jawaharlal Nehru, and Vallabhbhai Patel.

The main resolution of the session was the Quit India Resolution, which called for the British to leave India immediately. The resolution was passed unanimously by the delegates.

The Ramgarh session was a turning point in the Indian independence movement. It marked the beginning of the Quit India Movement, which was the largest and most widespread mass movement in Indian history.

The other options are incorrect because:

• Option A is incorrect because the Ramgarh session was held in 1942, not 1940.
• Option C is incorrect because the Ramgarh session was held in 1942, not 1920.
• Option D is incorrect because the Ramgarh session was held in 1942, not 1945.