The correct answer is (d), Lord Reading.
Lord Reading was the only Jewish viceroy of India. He was born in London in 1860 and was a lawyer by profession. He was appointed viceroy of India in 1921 and served in that position until 1926. During his tenure, he oversaw the implementation of the Montagu-Chelmsford Reforms, which granted greater autonomy to the Indian provinces. He also played a key role in the negotiations that led to the signing of the Gandhi-Irwin Pact in 1931.
Lord Ripon (a) was a British Liberal politician who served as viceroy of India from 1880 to 1884. He was a strong advocate of social reform and introduced a number of measures to improve the lives of the Indian people, including the Indian Councils Act of 1881, which expanded the powers of the Indian legislative councils.
Lord Lytton (b) was a British Conservative politician who served as viceroy of India from 1876 to 1880. He is best known for his role in the Second Anglo-Afghan War (1878-1880).
Lord Wavell (c) was a British field marshal who served as viceroy of India from 1943 to 1947. He is best known for his role in the negotiations that led to the independence of India and Pakistan in 1947.