In Monogamous Mating Species of Birds, a Large Proportion of Males

In monogamous mating species of birds, a large proportion of males of reproductive age will find a mate. Thus, some females will be mating with males who are lower in genetic fitness. If these females have extra mating with more genetically fit males, then the

A) female will have two males to help her raise her offspring.
B) first male is likely to leave her.
C) offspring will have to be raised without their father.
D) overall level of fitness will increase.