Assertion : The spread of living pteridophyte is limited and restricted to narrow geographical regions
Reason : Prothallus require cool, damp, shady places to grow and water is required for fertilisation.
A. If both assertion and reason are true and the reason is the correct explanation of the assertion
B. If both assertion and reason are true and but reason is not the correct explanation of the assertion
C. If assertion is true but reason is false
D. If both assertion and reason are false
