Gil takes a walk one morning. The graph shows the relationship between the distance he is from home and the number of minutes he has been walking.

A graph titled 'Gil's Morning Walk' with number of minutes from 0 to 30 on horizontal axis and distance from home in miles from 0 to 1.0 on vertical axis. Points (0, 0), (9, 0.4), (15, 0.2), (21, 0.2) and (30, 0.6) are connected through lines.

Select the statement that is true regarding Gil's morning walk based on the graph.
A.
Between 0 and 9 minutes, Gil's distance from home stays constant.
B.
Between 9 and 15 minutes, Gil's distance from home is increasing.
C.
Between 15 and 21 minutes, Gil's distance from home is 0 miles.
D.
Between 21 and 30 minutes, Gil's distance from home is increasing.

B. Between 9 and 15 minutes, Gil's distance from home is increasing.