Lord Linlithgow was the longest-serving Viceroy of India (1936–1943). He was in office when the Cripps Mission, led by Sir Stafford Cripps, arrived in March 1942 to negotiate Indian support for World War II. Linlithgow’s tenure was characterized by a rigid stance against the Congress, eventually leading to the Quit India Movement later that year. ANSWER: (A) Lord Linlithgow