In the past, Africa used to be farther away from Europe than it is now (shown above). What could explain why Africa is closer to Europe now than it was before?

A) Africa and Europe are parts of different plates. The plates floated toward each other across the ocean.

B) Africa and Europe are parts of different plates. The plates were sometimes pushed toward each other by earthquakes, and one plate went under the other plate into soft, solid rock.

C) Africa and Europe are parts of different plates. The plates slowly moved toward each other over millions of years. When the plates hit each other, they broke into smaller pieces.

D) Africa and Europe are parts of different plates. The plates slowly moved toward each other as one plate went under the other plate into soft, solid rock over millions of years.