Which of the following is the correct explanation of a derived character A. the presence of a backbone is a derived character of mammals because all mammals have a backbone
B. the presence of four limbs is a derived character of snakes because the ancestors of modern snakes had limbs even though modern snakes do not
C. the presence of hair is a derived character of mammals because all mammals have it
D. retractable claws are a derived character of carnivors because some of the animals that are carnivores have retractable claws