Angiosperms have dominated the land flora primarily because of their

Correct Answer : A.

Angiosperms are highly evolved and well adapted land plants. They have both vessels and tracheids in xylem for better conduction of water. Roots are modified into tap roots, adventitious roots, pneumatophores etc. to suit the desired climate. Sex organs are highly developed, sporophylls are organized into flowers and the flowers are highly coloured or attract pollinators at different times and places. Insect pollination is more prevalent because it is more efficient and leads to less wastage of pollen grains as compared to wind pollination. So the flowers are made attractive to attract a variety of insects. Seeds are more protected as they are enclosed inside a fruit. All these adaptations have made angiosperms more adaptive in diverse habitats.