The graph below shows a runner's distance from the starting line during a 30-minute race. Distance was measured in meters (m). Time was measured in minutes (min).

During which time interval was the runner moving at the greatest average speed?

A. 0-5 minutes
B. 10-15 minutes
C. 15-20 minutes
D. 25-30 minutes ​

The graph below shows a runners distance from the starting line during a 30minute race Distance was measured in meters m Time was measured in minutes min During class=