The correct response that demonstrates Newton's third law is:
If two bumper cars collide with a certain force, then they will move away from each other in opposite directions with the same force.
This response captures the essence of Newton's third law, which states that for every action, there is an equal and opposite reaction. When two bumper cars collide, the force that each car exerts on the other is equal in magnitude and opposite in direction, resulting in them moving away from each other.