There Is Some Evidence That Reptiles Called Cynodonts May Have

Multiple Choice

There is some evidence that reptiles called cynodonts may have had whisker-like hairs around their mouths. If true, then hair is a shared ________.

A) derived character of mammals, even if cynodonts continue to be classified as reptiles
B) derived character of all vertebrates and not of the mammal clade
C) ancestral character of the all vertebrates, but only if cynodonts are reclassified as mammals
D) derived character of mammals, but only if cynodonts are reclassified as mammals