The speed-time graph below shows the motion of a truck.
Which of the following statements is true about the motion of the truck?
The truck accelerates between points A and B and then remains at rest between points B and C.
The truck accelerates between points A and B and then travels at a constant speed between points B and C.
The truck travels at a constant speed between points A and B and then remains at rest between points B and C.
The truck travels at a constant speed between points A and B and then decelerates between points B and C.
