Assertion : Pollen grain reaches directly to the egg, which is seated deep in the ovarian cavity
Reason : To effect fertilization, the pollen grains germinate on the stigma.

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 the assertion is false but reason is true

Answer

D

Explanation

The pistil has the ability to recognize the pollen. The pollen grain held on the stigma and germinates to produce pollen tube through one of the germ pore. The contents of the pollen grain move into the pollen tube.