Correct option is A
Information Booster:
Vishnu Shridhar Wakankar was an Indian archaeologist and historian who first discovered the Bhimbetka rock shelters in 1957.
These rock shelters, located in Madhya Pradesh, contain prehistoric cave paintings dating back to the Mesolithic period.
His discovery brought international recognition to India's rich tradition of rock art.
Yashodhar Mathpal – A noted expert and conservator of Indian rock art, but not the discoverer.
Erwin Neumayer – An Austrian researcher who wrote extensively on Indian rock art, especially Bhimbetka, but didn’t discover it.
A.C.L. Carlleyle – A British archaeologist who discovered prehistoric tools and cave sites in the 19th century, but not Bhimbetka or the earliest rock paintings.