Answer:
The answer is D.
Step-by-step explanation:
The correct answer is D because, lets say for example that if 1 weak person has the right side of the rope and 1 strong person has the left side of the rope, if the weak person pulls the rope with all of their might, the strong person doesn't have to try, so they could mess with the weak person by pulling just as hard as the weak person. If the strong person adds just a bit more strength into pulling. The rope will move. I hope this helped! :)