A toy car rolls down a straight inclined track and its speed increases steadily. At the moment when the car reaches the flat surface at the base of the track, its speed remains constant. Which statement best explains why the speed of the car remains the same when it reaches the flat surface? The forces on the car are balanced.

Gravity is no longer acting on the car.

The force of the track acting on the car slows it down.

Frictional force is greater on the flat surface of the track.