There Is Some Evidence That Extinct Reptiles Called Cynodonts,which Arose

Multiple Choice

There is some evidence that extinct reptiles called cynodonts,which arose about 260 million years ago,may have had whisker-like hairs around their mouths.If this is true,then what can be properly said of hair?

A) It is a shared derived character of mammals,even if cynodonts continue to be classified as reptiles.
B) It is a shared derived character of the amniote clade and not of the mammal clade.
C) It is a shared ancestral character of the amniote clade,but only if cynodonts are reclassified as mammals.
D) It is a shared derived character of the mammals,but only if cynodonts are reclassified as mammals.