Stephen and andy are sitting next to each other on a bench. according to the law of universal gravitational there should be a gravitational force between them. why don't they feel this force?

A.) Universal Gravitational only applies to objects that are far from earth's surface

B.) The gravitational force is balanced out by the force of friction.

C.) The gravitational force between them is extremely small.

D.) The gravitational attraction is balanced by an equal and opposite gravitational repulsion