Which describes the relationship between potential and kinetic energy when a pole vaulter's pole has reached its maximum bend point?
A.
All the energy is gravitational kinetic energy, and none of the energy is potential energy.
B.
All the energy is gravitational potential energy, and none of the energy is kinetic energy.
C.
All the energy is elastic potential energy, and none of the energy is kinetic energy.
D.
All the energy is elastic kinetic energy, and none of the energy is potential energy.