An object is thrown vertically upward from the ground with an initial velocity of \( 80\ fts^{-1} \) . Its heights above the ground is parabola and is given by the equation: \( s=80t-16t^2 \) . How high does the object rise above the around?

A \( 100 ft \)

B \( 120 ft \)

C \( 96 ft \)