The correct answer is (a) Jonathan Duncan.
Jonathan Duncan was a Scottish surgeon and administrator who served as the Resident of Benares from 1785 to 1795. He was a strong advocate for the study of Indian languages and culture, and he founded the Sanskrit College of Banaras in 1791. The college was the first institution of higher learning in India to offer instruction in Sanskrit and other Indian languages. It played a major role in the revival of Sanskrit studies in India, and it continues to operate today as the Banaras Hindu University.
William Jones was a Welsh polymath who is considered to be the founder of Indo-European studies. He served as a judge in India from 1783 to 1794, and he was a member of the Asiatic Society of Bengal. He is best known for his translation of the Sanskrit play Shakuntala, and for his discovery of the similarities between Sanskrit and other European languages.
Charles Grant was a Scottish politician and philanthropist who served as a member of the British Parliament from 1784 to 1818. He was a strong advocate for the abolition of the slave trade, and he was a member of the Clapham Sect, a group of evangelical Christians who were active in social reform. He is best known for his book Observations on the State of Society among the Asiatic Subjects of Great Britain, which was published in 1792.
Warren Hastings was an English politician and administrator who served as the first Governor-General of India from 1773 to 1785. He is best known for his role in the Indian Rebellion of 1857, which led to the end of British rule in India. He was impeached by the British Parliament in 1787, but he was acquitted in 1795.