Correct option is D
The right answer is (d) Lord Mountbatten and C. Rajagopalachari.Lord Mountbatten served as India's last Viceroy from March 1947 to August 1947, as well as its last Governor-General till August 1948.
After India gained independence on August 15, 1947, he served as the final Governor-General of independent India until August 15, 1948, when Rajagopalachari succeeded him.