In the Context of the Evolutionary Psychology Approach to Gender

In the context of the evolutionary psychology approach to gender development,which of the following statements is true of sexual selection?

A) Members of the opposite sex compete with each other and members of the same sex exercise choice between themselves.
B) The sex that invests the most in producing off spring is the one that generally chooses.
C) Female members of all species have no choice in the selection of whom they will mate with.
D) The sex that invests the most in producing offspring is the one that generally competes.