The American flying squirrel and the flying phalanger of Australia live in similar environments and look very similar. However, they are not closely related. Their resemblance is most likely an example of:.
a. sexual selection
b. temporal isolation
c. convergent evolution
d. divergent evolution
e. coevolution

Convergent evolution.

Explanation:

We often find unrelated organisms developing same forms of structure, because that form is very adaptive in the common environment they live in.This case of evolution  is called convergent evolution.Convergent evolution give rise to analogous structure and the similarity among unrelated organisms due to convergent evolution is called homoplasy.Some examples of homoplastic feature are wings of birds and insect,spines and thorns in plants etc

Ithink the answer is d.