A football is kicked toward the goal. The height of the ball is modeled by the function h(t) = −16t2 + 64t, where t equals the time in seconds and h(t) represents the height of the ball at time t seconds. What is the axis of symmetry, and what does it represent?

A. t = 2; It takes the ball 2 seconds to reach the maximum height and 2 seconds to fall back to the ground.
B. t = 2; It takes the ball 2 seconds to reach the maximum height and 4 seconds to fall back to the ground.
C. t = 4; It takes the ball 4 seconds to reach the maximum height and 4 seconds to fall back to the ground.
D. t = 4; It takes the ball 4 seconds to reach the maximum height and 8 seconds to fall back to the ground.