Assertion : Grographical isolation brings about sympatric speciation.
Reason : Reproductive isolation brings about allopatric speciation.

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 true 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

D

Explanation

When a population formerly continuous in range spit into two or more geographically isolated population and form new species the mode of speciation is called allopatric speciation.
When a sub population become reproductively isolated in the midst of its parent population this is sympatric speciation.