A frozen water bottle is released from rest on one side of a U-shaped surface and rolls without waste down to the bottom and up the far side. At the instant it crosses the lowest point, a blast of energy liquifies the ice. When the bottle reaches its maximum height on the far side of the U, it is: (a) It is impossible to tell without knowing the mass of the water. (b) at a lesser height than when it was released. (c) at a greater height than when it was released. (d) at the same height than when it was released. (e) It is impossible to tell without knowing the radius of the bottle.