Which statement BEST differentiates the characteristics of mammals from reptiles? A. Mammals are cold-blooded while reptiles are warm blooded.
B. Mammals have hair or fur while reptiles possess scales and wings.
C. Mammals possess mammary glands to feed their young while reptiles do not.
D. Mammals do not have hair or fur and they possess mammary glands to feed their young while reptiles possess scales and lay eggs.​