Question: Comparing the skeletons of which of the following fish would best show the evolution of a fish species?

  Options: 
 A. a male fish and a female fish that could produce offspring
 B. the same fish just before it received a cut and after it healed
 C. a fish that lived recently and a fish that lived a long time ago
 D. the same fish just after it hatched and when it was full-grown 
Answer: C