A Ball Falls to the Ground from Height H and Bounces

Multiple Choice

A ball falls to the ground from height h and bounces to height h'. Momentum is conserved in the ball-earth system

A) no matter what height h' it reaches.
B) only if h' < h.
C) only if h' = h.
D) only if h' > h.
E) only if h' ≥ h.