The Cabinet Mission Plan was devised and proposed in 1946 by the British government to discuss the transfer of powers from the British Raj to the Indian leaders. Each leader of the Indian National Congress had different views about this plan:

1) Mahatma Gandhi: Mahatma Gandhi was not totally in favor of the Cabinet Mission Plan. He had his reservations as he was cautious about the communal electorates and groupings.

2) Jawaharlal Nehru: Nehru was also not entirely in favor of the Cabinet Mission Plan. He was against its proposal of maintaining a united India, as he believed that it would lead to a weak and unworkable center.

3) Sardar Patel: Sardar Patel is the correct answer. He was totally in favor of the Cabinet Mission Plan. His biggest concern was unity and he was ready to compromise on the central power to prevent the partition of India.

4) Maulana Abul Kalam Azad: Maulana Azad, though initially in favor of the Plan, was not fully supportive due to its minor implications creating separate Muslim provinces which would have potentially led to partition.