Cotton-Topped Tamarins Are Small Primates with Tufts of Long White

Multiple Choice

Cotton-topped tamarins are small primates with tufts of long white hair on their heads.While studying these creatures,you notice that males with longer hair get more opportunities to mate and father more offspring.To test the hypothesis that having longer hair is adaptive in these males,you should

A) test whether other traits in these males are also adaptive.
B) look for evidence of hair in ancestors of tamarins.
C) determine if hair length is heritable.
D) test whether males with shaved heads are still able to mate.
E) measure the length of hair on female tamarins.