Ayoung girl on a sled slides to the bottom of a hill. At the bottom of the hill can she have negative gravitational potential energy? * (2 Points) O No, energy can never be negative. 0 No, at the bottom of the hill her gravitational energy will always be zero. O Yes, if her reference point is taken from the top of the hill. 0 Yes, if she changes all her gravitational potential energy to kinetic energy