The correct interpretation of Newton's third law of motion in the context of bumper cars is D: if two bumper cars collide with a certain force, then they will move away from each other in opposite directions with the same force.
Newton's third law states that for every action, there is an equal and opposite reaction. This means that when one bumper car exerts a force on another during a collision, the second car exerts an equal force back on the first car in the opposite direction. As a result, both cars will generally move away from each other after the collision, and the forces they experience are equal in magnitude but opposite in direction.