Which of the following is the most primitive ancestor of man

Primates which existed about $15$ million years ago were

$(I)$ Dryopithecus

$(II)$ Homo habilis

$(III)$ Ramapithecus

$(IV)$ Australopithecus

$(V)$ Homo erectus

$(VI)$ Neanderthal man

Choose the correct option

The lowest capacity of cranium was found in the

A Hominid fossil discovered in Java in $1891$ , now extinct, having cranial capacity of about $900$ $cc$ was

First human like hominid is known as

Which of the fossil man possessed a cranial capacity almost equal to that of modern man