The Small Circles in the Diagram Below Represent the Positions

Multiple Choice

The small circles in the diagram below represent the positions along the x axis of a body at equal time intervals.Assume the body moves in a straight line.
This diagram is most likely to describe

A) a swimmer swimming laps.
B) an exercise on a rowing machine.
C) a person on a treadmill.
D) a tennis ball during a volley.
E) a runner who tripped,fell,rose,and continued racing.