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) look for evidence of hair in ancestors of tamarinsB) test whether males with shaved heads are still able to mateC) determine if hair length is heritableD) test whether other traits in these males are also adaptive

c

Explanation:

The correct option is c which is to determine if hair length is heritable. These animals are smallish and almost the size of a squirrel. The cotton topped tamarins  primates are characterized with long hair for some of its individuals, while some of these primates may have short, sleek or furry hair.  In testing this hypothesis the fact is based on whether the length of hair is heritable which is true here since these tamarins with long hair have a common ancestry so they share a single genetic code

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