Answer the question

Comparing the skeletons of which of the following fish would best show the evolution of a fish species?
OPT:
--a male fish and a female fish that could produce offspring.
--the same fish just before it received a cut and after it healed.
--a fish that lived recently and a fish that lived a long time ago.
--the same fish just after it hatched and when it was full-grown.
a fish that lived recently and a fish that lived a long time ago