The driver of a car completes a trip. The graph displays data about the car's motion during the trip.
Which of the following statements about the car's motion is true?
A.
The total time for the car trip was 50 minutes.
B.
The car returned to where it had started the trip at the end of the trip.
C.
The car did not slow down during the trip.
D.
The car did not travel at a constant speed during the entire trip.