Correct Answer:
C. Lord Linlithgow
The correct answer is Lord Linlithgow. He served as Viceroy of India from 1936 to 1943, making his tenure the longest among all Viceroys, spanning seven crucial years during World War II and significant political developments in India. His long term saw the passage of the Government of India Act 1935 and the Quit India Movement.
- Lord Harding served from 1910-1916.
- Lord Mayo served from 1869-1872.
- Lord Wavell served from 1943-1947.
These other Viceroys had significantly shorter tenures compared to Lord Linlithgow.