Question

A frog leaps vertically into the air and encounters no appreciable air resistance.

Which statement below is correct?

a) On the way up its acceleration is 9.8m/s^2, and on the way down its acceleration is 9.8m/s^2 downward

b) on the way up and on the way down its acceleration is 9.8m/s^2 downward and at the highest point its acceleration is 0

c) on the way up, on the way down, and at the highest point its acceleration is 9.8m/s^2 downward

d) at the highest point, it reverses the direction of its acceleration

I think its b) but I'm not sure...