A catapult is used to project a stone. Which of the following energy conversions takes place as the stone is released?

• A.The kinetic energy of the stone is converted into gravitational potential energy
• B.The gravitational potential energy of the catapult is converted into kinetic energy of the stone
• C.The gravitational potential energy is converted into elastic potential energy
• D.The elastic potential energy of the catapult is converted into gravitational potential energy of the stone
• E.None of the above