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.
D
The car did not travel at a constant speed during the entire trip.