Two magnets rest on a table. Because like poles of a magnet repel each other, the magnets exert a force on each other. If magnet 1 is moved closer to magnet 2, magnet 2 will move. This is because-

A. Objects need to touch each other in order to cause movement.

B. Magnets can only exert a force on other magnets.

C. Force can affect objects over distance.

D. Moving magnet 1 changed the force needed to move magnet 2