The man, who hunted with stone weapons but ate fruit was:

The correct answer is Option (4) → Australopithecines

Human evolution passed through several stages, each known from fossils. The stages differ in their time, their brain size and their food.

(1) Dryopithecus — Incorrect. Dryopithecus lived about 15 million years ago (mya). It was hairy, walked like gorillas and chimpanzees, and was more ape-like. It did not make stone weapons.

(2) Ramapithecus — Incorrect. Ramapithecus also lived about 15 mya. It was more man-like than Dryopithecus, but it too was hairy and walked like the apes.

(3) Homo erectus — Incorrect. Homo erectus lived about 1.5 mya and had a large brain of around 900 cc. It probably ate meat, not mainly fruit.

(4) Australopithecines — Correct. About 2 mya, the Australopithecines probably lived in the grasslands of East Africa. Evidence shows that they hunted with stone weapons but essentially ate fruit.

NCERT Extract:
Origin and Evolution of Man – …