Correct Option: B

Louis Mountbatten was the last Viceroy of India (1947) and the first Governor-General of the independent Union of India (1947–48), from which the modern Republic of India emerged in 1950. When India and Pakistan attained independence at midnight on the night of 14-15 August 1947, Mountbatten remained in New Delhi for ten months, serving as India's first governor general until June 1948.