The correct answer is option C, that is, intersexual selection.
Sexual selection refers to a kind of natural selection where the members of one biological sex select mates of the other sex to mate with, that is, intersexual selection, and compete with the members of the similar sex for access to members of the opposite sex, that is, intrasexual selection.
Intersexual selection takes place when one gender makes mate selections on the basis of a particular feature in the other gender, like possession of large, strong antlers on a male buck.