The diagram below shows the movement of water on Earth. The picture shows the oceans on the world map. Ocean water is shown flowing from east to west, from the Pacific Ocean past Australia and the Indian Ocean and around the southern tip of Africa. A point in the Pacific Ocean in the east is labeled A. The ocean water then flows north along the coasts of Africa and Europe. The water finally turns south where the Atlantic Ocean meets the Arctic Ocean. A point in the Atlantic Ocean in the north is labeled B. The ocean water flows south along the coasts of North and South America. The water then flows from west to east, past Antarctica and Australia, before finally flowing north through the Pacific Ocean.

Which of these statements best explains why ocean water moves from A to B?
Question 14 options:

The wind velocity at B is greater than at A.

Air at A is denser than at B.

The tilt of Earth at B is greater than at A.

Temperature at A is greater than at B.