Parrots and crocodiles have a similar jaw structure. Their jaws are made of five fused bones. Which statement is a possible reason for this similarity?
A. Parrots and crocodiles share a common ancestor.
B. Parrots and crocodiles have identical skeletons.
C. Parrots and crocodiles have the same food preferences.
D. Parrots and crocodiles eat in the same manner.