Asssertion: in pteridophytes, zygote produces a multicellular sporophyte.
Reason: Sporophyte is the dominant phase In life cycle of pteridophytes.

Options

A. a) If both assertion and reason are true and reason is the correct explanation of assertion.
B. b) if both assertion and reason are true but reason is not the correct explanation of assertion
C. c) if assertion is true but reason is false.
D. d) if both assertion and reason are false.

Answer

B

Explanation

In pteridophytes, gametophytes bear male and femal sex organs called antheridia and archegonia, respectively water is required for transfer of antherozoids -the male gametes are released from the antheridia, to the mouth of archegonium.Fusion of male gamete with the egg present in the archegonium results in the formation of zygote. Zygote thereafter produces a multicellular of differentiated sporophyte which is the dominnant phase of the pteridophytes sporophyte which is the dominant phase of the pteridophytes.