A student went on a walk, and kept track of their time and distance. The data is displayed in the graph. Which best describes the student's walk?
25
20
15
Distance
10
-Distance
5
5
10
15
20
Time
A The student went up a hill, and then down a hill.
B. The student walked very quickly at the beginning of the walk, but then slowed down at
the end
c. The student walked slowly at the beginning of the walk, and faster at the end.
D. The student walked at a steady pace, and then returned to the starting point.