Can we conclude from "The bicycle rider is wearing a yellow jacket and a blue helmet while riding on a road during winter time." that "A bicycle rider is riding downhill."?\nOptions:\n- yes\n- no\n- it is not possible to tell
A step-by-step solution is:
it is not possible to tell
He may not be riding downhill it could be flat surface.

.

So, the answer is it is not possible to tell