Assertion: Human beings have two sets of teeth during their life.
Reason: Human beings have thecodont dentition.

Options

A. If both assertion and reason are true and reason is the correct explantion of assertion
B. If both assertion and reason are true but reason is not the correct explnantion of assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.

Answer

B

Explanation

Majority of mammals including humnan beings possess tow sets of teeth during their life, a set of temporary milk or decidous teeth replaced by a set of permanent or adult teeth. This type of denititon is called diphyodont. Human beings also have theorcodont dentition, i.e., teeth are embedded in the suckets of the jaw bones.