Assume That $h ( t ) = - 16 t ^ { 2 } + 80 t + 100$

Multiple Choice

Assume that $h ( t ) = - 16 t ^ { 2 } + 80 t + 100$ is the height, in feet, of an object above ground at time tmeasured in seconds. The time that this object reaches its maximum height is

A) 3.5s
B) 3s
C) 2.5s
D) 2s
E) 1.5s