Newton's third law states that when an object exerts force on another object, the second object exerts an equal but opposite force on the first object. which of the following shows an example of this

a. a girl hits a volleyball. her hand exerts a force on the ball, and the ball exerts a force on her hand.

b. a woman presses on both sides of a box with equal force.

c. a moving cart becomes more difficult to stop as more mass is added to it.