Assertion :- According to Hugo de Vries , it is mutation which causes speciation and hence called it saltation.
Reason :- Mutations are random and diretional.
A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
B. If both Assertion & Reason are True but Reason is a not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is False.
D. If both Assertion & Reason are false.
