Scientists have determined that a type of marsupial called an opossum shares a common ancestor with wallabies that live in Australia. This is an amazing idea since the two continents are thousands of miles apart! What evidence best explains how these two animals from different parts of the world could possibly be related?

a. A thousand years ago the opossum developed the ability to swim which allowed it to leave Australia.

b. Both marsupials evolved from a different marsupial in Africa.

c. The marsupials evolved differently as they adapted to different continents that were once connected.

d. Before oceans formed, the animals were able to travel to separate continents.