Consider a distance and time graph whose y-axis is distance and x-axis is time. What do you know about a runner's motion at the time when a segment of the graph is horizontal?
a) The runner is moving at a steady rate.
b) The runner is slowing down.
c) The runner is speeding up.
d) The runner has stopped.
e) The runner is running very slowly

somebody pleaseee help its due in 9 mins