Select the correct statements from the following :

a- As the anthers mature and dehydrate, the microspores dissociate from each other and develop into pollen grains .

b- The pollen grains represent the female gametophytes.

c- Pollen grain exine has prominent apertures called germ pores where sporopollenin is absent.

d-The inner wall of the pollen grain is called the exine.

a and c

The correct answer is Option (3) - a and c

Pollen grain exine has prominent apertures called germ pores where sporopollenin is absent.

The inner wall of the pollen grain is called the intine. It is a thin and continuous layer made up of cellulose and pectin.

The pollen grains represent the male gametophytes.

As the anthers mature and dehydrate, the microspores dissociate from each other and develop into pollen grains .Inside each microsporangium several thousands of microspores or pollen grains are formed that are released with the dehiscence of anther.