Fossil Anklebones from the Ancestors of Whales and the Anklebones

Multiple Choice

Fossil anklebones from the ancestors of whales and the anklebones of hippopotamuses have the same shape,which is an adaptation for running on land.This suggests that _____________.

A) whales and ancient hippopotamuses underwent convergent evolution
B) whales and ancient hippopotamuses evolved from a common ancestor
C) the fossils of ancient hippopotamuses should be found in the same location and at the same depth from the Earth's surface as the fossils of ancient whales
D) whales evolved from aquatic dinosaurs, whereas hippopotamuses evolved from terrestrial dinosaurs