The correct response that demonstrates Newton's third law in the context of bumper cars 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 reflects Newton's third law, which states that for every action, there is an equal and opposite reaction. When the two bumper cars collide, the force exerted by one car on the other is met with an equal force in the opposite direction.