As a Car Goes Up a Hill,there Is a Force

Multiple Choice

As a car goes up a hill,there is a force of friction between the road and the tires rolling on the road.The maximum force of friction is equal to:

A) the weight of the car times the coefficient of kinetic friction.
B) the normal force of the road times the coefficient of kinetic friction.
C) the normal force of the road times the coefficient of static friction.
D) zero.