Which Finding Is the Reason That Cladistic Classification Better Reflects

Which finding is the reason that cladistic classification better reflects the evolutionary history of tetrapods than the traditional classification?

A) Mammals share a more recent common ancestor with lizards.
B) Mammals share a more recent common ancestor with turtles.
C) Crocodilians share a more recent common ancestor with amphibians.
D) Crocodilians share a more recent common ancestor with birds.