Ryan shoots an arrow upwards while he stands on top of a tree house. The graph shown below traces the path of the arro is in the air, where y is the height of the arrow above the ground, and x is the horizontal distance from the tree house. Fou
the arrow's path through the air are marked in the graph below.
c
D
At which stage of the arrow's path does the height above the ground change at the slowest rate?
stage B
OD
stage D
stage A
stage C