While visiting White Sands National Park, you grab a piece of cardboard box and slide down a large sand dune from the top of the dune to the bottom of the dune. Friction is present; air resistance can be ignored. Which statement correctly describes the change in energy as you slide from the top of the dune to the bottom of the dune on the cardboard box? AThe sum of the kinetic energy and the gravitational potential energy changesby an amount equal to the energy dissipated by friction. BThe gravitational potential energy decreases, and the kinetic energy isconstant. CThe decrease in the gravitational potential energy is equal to the increase inkinetic energy. DThe gravitational potential energy and the kinetic energy must bothdecrease.