A Stone Is Thrown Downward from a Cliff

Multiple Choice

A stone is thrown downward from a cliff.Take "up" to be the positive direction.Which of the following statements is true about the stone?

A) The velocity is negative,the acceleration is negative,and the speed is negative.
B) The velocity is positive,the acceleration is negative,and the speed is positive.
C) The velocity is negative,the acceleration is negative,and the speed is positive.
D) The velocity is positive,the acceleration is positive,and the speed is positive.