Green swordtails are sexually dimorphic: males have a long, swordlike projection from their tails, and females have rounded tails. In choice experiments, female swordtail greatly prefer males with elongated tails to males with tails of normal length.An experimenter decides to perform an experiment on a closely related species, a molly,in which males and females are not sexually dimorphic for tail size and shape. He glues artificial tails to half of his male subjects, and leaves the others alone.

a.Describe what he should do next
b.Imagine that this experiment was conduced, and females has a strong preference for augmented males. Why might this be the case?