By looking at the hypothetic chart, it is clear that the fish in lake 1 and lake 2 are descended from a common ancestor. so, the correct option is C.
What is species?
A biological species is a group of organisms that can reproduce with one another in nature and produce fertile offspring.
When two lakes are close to one another, they can't be geographically separated. The fish in lake 1 and lake 2 do not evolve from different ancestors as both the species are looking very similar to each other.
Therefore, by looking at the hypothetic chart, it is clear that the fish in lake 1 and lake 2 are descended from a common ancestor.
To learn more about Speciation, refer to the link:
https://brainly.com/question/2113835