The correct option is D Tension force
Tension is a force that stretches something. Tensional force is a force applied by an object being stretched. The object being stretched might be a rope, a string, an elastic band or a wire. The tensional force of the object is applied on the objects that are stretching it. Tensional force is directed along the stretched object. It pulls equally on the objects on either end of the rope or the elastic band that is being stretched.