Assertion : All primates have a common ancestry.
Reason : The most primate was shrew like animals.

Options

A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B. If both the assertion and reason are ture but the reason is not a correct explanation of the assertion
C. If the assertion is true but the reason is false
D. If both the assertion and reason are false

Answer

B

Explanation

All perimates have a common ancestry (monophytic origin). Primitive evolution began 80-100 million year ago. The evolutionary history of eutherian mammals dates back to early cretaceous period. The earliest eutherians were shrew-like terrestrial insectivores. they were small, ground dwelling mammals.