Assertion : External water for transport of male gametes is not required in gymnosperms.
Reason : A pollen tube is formed by the male gametophyte for effecting fertilisation.
(a) If both A and R are true and R is the correct explanation of A
(b) If both A and R are true but R is not the correct explanation of A
(c) If A is true but R is false
(d) If both A and R are false.