Two basketballs are sitting 1 m apart and are not moving. Which best explains why the gravitational force does not cause the to move?

A. No gravitational force exists between the two objects Because they are not touching.

B. The gravitational force between the two objects is weak because they are 1 m apart.

C. No gravitational force exists between the two objects because their masses are small.

D. The gravitational force between the two objects is weak because their masses are small.