Which of the following is a vestigial tooth found in humans?

$C$. Fuhlrott made an important discovery in evolution. What did he discover?

Given below are two statements:
Statement $I$: Modern $Homo$ $sapiens$ arose in Australia and moved across continents.
Statement $II$: $Homo$ $sapiens$ arose around $75000$ to $10000$ years ago.
In the light of the above statements, choose the most appropriate answer from the options given below:

The cranial capacity of $Australopithecus$ was approximately ...... .

Which one of the following pairs is mismatched regarding their appearance in human evolution?

An arched palate and uniform-sized teeth were found in which of the following ancestors?