The initial position of the toy is 96 feet, so for t = 0 we have h = 96.
After 2 seconds, the toy reaches the maximum height of 100 feet, so for t = 2 we have h = 100.
The object hits the ground after 12 seconds, so for t = 12 we have h = 0.
Looking for the graph that has the ordered pairs (0, 96), (2, 100) and (12, 0), the correct graph is graph Z.
Therefore the correct option is D.