Which statement about the frog's motion is correct?
On the way up its acceleration is $9.8 \text{ m/s}^2$ upward, and on the way down its acceleration is $9.8 \text{ m/s}^2$ downward.
On the way up and on the way down its acceleration is $9.8 \text{ m/s}^2$ downward, and at the highest point its acceleration is zero.
On the way up, on the way down, and at the highest point its acceleration is $9.8 \text{ m/s}^2$ downward.
At the highest point, it reverses the direction of its acceleration.
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