The correct answer is B. George Grierson.
George Abraham Grierson (1851â1941) was a British Indologist who served as the Linguistic Survey of India’s director from 1898 to 1928. He is best known for his work on the dialects of India, including the dialects of Bihar.
A. V. S. Smith was a British civil servant who served as the Lieutenant-Governor of Bihar and Orissa from 1908 to 1912. He is not known for his work on the dialects of Bihar.
William Tylor was an English anthropologist who is considered one of the founders of modern anthropology. He is not known for his work on the dialects of Bihar.
Bhikhari Thakur was a Maithili poet and writer who is considered one of the greatest Maithili literary figures of all time. He is not known for his work on the dialects of Bihar.