Fossils of a primitive whale called Basilosaurus have been found in many parts of the southeastern U.S., including the Gulf states of Mississippi, Alabama, and Louisiana. This creature lived in the sea during the Eocene epoch, which lasted from about 55 million to 34 million years ago.
What do these fossils suggest about the areas of land in which they are found?
A.
Humans lived in the areas before Basilosaurus.
B.
The areas were once covered by the sea.
C.
Humans and Basilosaurus lived in the areas together.
D.
The areas were deserts in the past.