Olivia became interested in the fossil evidence that wegener used to form his hypothesis of continental drift. how did fossils show that the continents were once joined together?

a. animal fossils such as the mesosaurus were found on one continent.
b. scientists found examples of different kinds of fossils on some continents.
c. plant fossils of the same kind of fernlike plants were found on five continents.
d. freshwater animal fossils were found in the nearby oceans.