A car of mass m is driving over the crest of a hill. At the top of the hill, the car has a non-zero speed and is speeding up. If the magnitude of the gravitational force is F_G and the magnitude of the normal force is n, which of the following statements is true at this instance?

A. The net acceleration must have magnitude F_G/m.

B. n = F_G

C. n > FG

D. n < F_G

E. The net acceleration vector points downward.

F. Several of the above is true.