Olivia completed a high dive from a platform at a recent competition. The graph below shows her distance from the pool, in meters, as a function of time, in seconds. What is the meaning of the x-intercept?
a. Olivia's maximum distance from the pool was about 10.5 meters.

b. It takes Olivia about 3.2 seconds to enter the pool.

c. Olivia's dive was from a 10-meter platform.

D. Olivia's speed was not constant.