1) A child is carrying a 200g stuffed animal horizontally, at a constant height of 0.8m. How much work is done? a) 160 J, because that is the correct product of force and distance b) 0.16 J, because that is the correct product of force and distance c) No work is done, because work must always involve a change in elevation d) No work is done, because the lifting force is not in the same direction as the displacement e) No work is done, because the normal force is parallel to the distance traveled