Answer: C) larger than the chimpanzee-sized brain of Australopithecus.
Explanation:
The brain homo are larger than the chimpanzee size brain of australopithecus as, humans develop significantly the larger brain size and relatively the smaller faces, which are the less progressive small teeth and the jaws and the length of the arm are comparatively shorter. Australopithecus are very extinct hominid and they are existed early in this planet.