Among the Pipefish Seahorse,the Male Carries the Young and Invests

Among the pipefish seahorse,the male carries the young and invests many more resources in their care than does the female,who invests almost nothing.According to differential parental investment theory,which of the following is probably also true of the pipefish seahorse?

A) The female is more choosy when selecting a mate.
B) The female is more aggressive than the male.
C) The male is more aggressive than the female.
D) Both the male and female seahorse are choosy and aggressive.