You're Riding on a Pogo Stick-A Vertical Stick with a Spring

Multiple Choice

You're riding on a pogo stick-a vertical stick with a spring at the bottom and foot pads on which you stand. You're holding the top of the stick tightly in your hands and you and the stick are bouncing up and down on its spring. As you land after one particularly high bounce, the spring becomes more and more tightly compressed. When the spring is at half its maximum compression, your velocity is

A) downward but your acceleration is upward.
B) upward and you acceleration is downward.
C) (A) or (B)
D) upward but your acceleration is upward.