You Fall, While Skiing, and One Ski (Of Weight W) $\theta$

Multiple Choice

You fall, while skiing, and one ski (of weight W) loosens and slides down an icy slope (assume no friction) , which makes an angle ? with the horizontal. The force that pushes it down along the hill is

A) W cos $\theta$ .
B) W sin $\theta$ .
C) W.
D) zero; it moves with constant velocity.
E) W tan $\theta$ .