Force cannot alter the :

• A football player can cause a moving ball to move in the opposite direction of its motion by exerting force in that direction.
• A goalkeeper can stop a football by applying force.
• When a force is applied to an empty can, its shape changes.
• All these examples suggest that force can change the direction, speed and shape of objects.
• However, the force cannot change the mass of the object because the quantity of matter in the object remains the same even when force is applied.

Therefore, 'Mass of the object' is the correct response.