Which of the following is considered the direct ancestor of modern humans?

Where were the fossils of $Homo$ $erectus$ discovered?

"In different races, there may be difference in culture and ways of living but capacity in all is the same". It was the opinion of:

The name given to the hominid fossil from the Shivalik hills in India is .......

Earliest evidences of social life are attributed to

The most modern human fossil discovered is known as...