A volleyball player with a mass of 65 kilograms jumps upward by pushing against the floor with her feet with a force of 1,400 Newtons. Which is the best explanation for why the volleyball player moves upward?
a) The player's weight is reduced by the 1,400 Newton force.
b) The 1,400 Newton force is equal to the force of gravity holding the player down.
c) The floor pushes back upward on the player with a force of 1,400 Newtons, which lifts the player off the ground.
d) The player's feet are connected to the rest of her body and distribute the 1,400 Newton force over the whole body.