The correct option is D Both a and b
Human evolution is the evolutionary process that led to the emergence of Homo sapiens as a distinct species of the hominid family.
Dryopithecus, Ramapithecus, Australopithecines, Homo habilis, Homo erectus, Homo sapiens neanderthalensis are the ancestors of the modern man.
Dryopithecus lived about 15 million years ago and was more like an ape.
They were hairy. They used both forelimbs and hindlimbs for locomotion. This form of locomotion is called quadrupedalism which involves both forelimbs and hindlimbs. This type of locomotion is seen in gorillas and chimpanzees.
They had large canines, but most of their diet consisted of fruits and leaves. They probably did not eat meat.