The Cabinet Mission was a delegation sent by the British government to India in 1946 to discuss and negotiate the terms of India`s independence. The question asks about the person who was not a member of the Cabinet Mission.
Option 1: Sir Stafford Cripps
Sir Stafford Cripps was a British statesman who served as the leader of the mission. He was a member of the Cabinet Mission.
Option 2: A. V. Alexander
A. V. Alexander, also known as Lord Alexander, was a British politician and a member of the Cabinet Mission. He played a crucial role in the negotiations.
Option 3: Radcliffe
Radcliffe was not a member of the Cabinet Mission. He was a British lawyer who was later appointed to head the boundary commission to demarcate the borders between India and Pakistan.
Option 4: Pethwick Lawrence
Pethwick Lawrence was a British politician and a member of the Cabinet Mission. He was one of the three members of the mission who were sent to India.
In conclusion, among the given options, Radcliffe was not a member of the Cabinet Mission.