The correct answer is (a) M.S. Swaminathan.
M.S. Swaminathan is an Indian agricultural scientist who is considered the father of modern agriculture in India. He is known for his work on the Green Revolution, which helped to increase agricultural production in India and other developing countries. He has also worked on issues such as food security, sustainable agriculture, and climate change.
Salim Ali was an Indian ornithologist who is considered the father of Indian ornithology. He is known for his work on the birds of India, and he is the author of several books on the subject. He also founded the Bombay Natural History Society, which is one of the leading ornithological organizations in India.
B.V. Rao was an Indian economist who is known for his work on agricultural economics. He is the author of several books on the subject, and he has also served as the chairman of the Agricultural Prices Commission of India.
N.S. Randhawa was an Indian civil servant who is known for his work on agriculture. He served as the first director of the Indian Council of Agricultural Research, and he is also the author of several books on agriculture.
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