Solve the Problem

Multiple Choice

Solve the problem. Round to the nearest tenth, if necessary.
-If an object is thrown upward with an initial velocity of , its height after t sec is given by . Find the maximum height attained by the object. (The object will attain maximum height exactly at the halfway point in terms of the time t, where t = 0 is at the beginning of the object's flight, and the final time is when the object hits the ground.)

A) 0 ft
B) 16 ft
C) 4 ft
D) -12 ft