A Cart Slides Down an Incline Without Friction and Then $\theta$

Multiple Choice

A cart slides down an incline without friction and then bounces off a bumper at the bottom.Assume that the coordinate system runs along the track with positive to the right.

A) The acceleration should be -gsin $\theta$ along the track on the way down and -gsin $\theta$ on the way back.
B) The acceleration should be gsin $\theta$ along the track on the way down and -gsin $\theta$ on the way back.
C) The acceleration should depend on the mass of the cart.
D) The acceleration should be -gsin $\theta$ along the track on the way down and gsin $\theta$ on the way back.
E) The acceleration should be gsin $\theta$ along the track on the way down and gsin $\theta$ on the way back.