Solve the Problem
-A Coin Is Tossed Upward from a Balcony

Multiple Choice

Solve the problem
-A coin is tossed upward from a balcony 176 feet high with an initial velocity of 16 feet per second, then its height after $t$ seconds is given by the equation $h ( t ) = - 16 t ^ { 2 } + 16 t + 176$ . During what interval of time will the coin be at a height of at least $80 \mathrm { ft }$ ?

A) $0 \leq t \leq 1$
B) $3 \leq t \leq 6$
C) $0 \leq t \leq 3$
D) $2 \leq t \leq 3$