Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.
Assertion (A) : In gymnosperms, the pollen grains are released from the microsporangium and carried by air currents.
Reason (R) : Air currents carry the pollen grains to the mouth of the archegonia where the male gametes are discharged and pollen tube is not formed.
In the light of the above statements, choose the correct answer from the options given below :

Assertion (A) is correct: In gymnosperms, pollen grains are indeed released from the microsporangium and are typically carried by air currents. This process is known as anemophily.

Reason (R) is incorrect: Air currents carry pollen grains to the ovule (not the mouth of the archegonia) where fertilization occurs. In gymnosperms, the female gametophyte is located within the ovule, and pollen grains are directed towards the ovule for fertilization, not the archegonia. Additionally, in gymnosperms, a pollen tube is formed during fertilization, allowing the male gametes to travel to the egg cell within the ovule.