Why might we expect to find life on Jupiter's moon Europa? a. Because it has an oxygen rich atmosphere b. Because it has active volcanism c. Because it is covered with lakes d. Because it has a liquid ocean below its icy surface

D is the best answer

Explanation:

Evidence suggests the existence of lakes of liquid water entirely encased in Europa's icy outer shell and distinct from a liquid ocean thought to exist farther down beneath the ice shell. If confirmed, the lakes could be yet another potential habitat for life.