The correct option is (C) Angiosperms and Gymnosperms.
Pollination is the transfer of pollen from the anther to stigma. By pollination, male gamete i.e. pollen is brought in contact with the female gamete i.e. egg. In Angiosperms, male and female gametes are present in the flowers. Pollination occurs by means of wind, water, insects, birds etc. In gymnosperms, male and female gametes are present on separate plants in the form of cones. Pollens are usually carried away by the wind to the female cones. Hence, pollination occurs in both Angiosperms and Gymnosperms.
