A woman was recently given the opportunity to ride in a porsche race car on their test in Hapeville, Georgia. Below is a graph of just a short segment of her ride. During which segments(s) of her trip was the car stopped?

During the segments B - C and D - E, the car stopped since the y axis is the distance and the distance stayed the same in between those segments.

For a simpler answer, the flat horizontal lines on the graph are the times when the car was stopped.

thermal energy is the answer