What was the brain capacity of Homo erectus ?

The correct answer is Option (3)-900 cc

About 15 mya, primates called Dryopithecus and Ramapithecus were existing. They were hairy and walked like gorillas and chimpanzees. Ramapithecus was more man-like while Dryopithecus was more ape-like.

Two mya, Australopithecines probably lived in East African grasslands. Evidence shows they hunted with stone weapons but essentially ate fruit. This creature was called the first human-like being the hominid and was called Homo habilis. The brain capacities were between 650-800cc. They probably did not eat meat.

Homo erectus had a large brain around 900cc. Homo erectus probably ate meat.

The Neanderthal man with a brain size of 1400cc lived in near east and central Asia between 1,00,000-40,000 years back.