Bob threw a ball across a basketball court. The graph below shows the relationship between the horizontal distance of the ball and its height. у FLIGHT OF BALL 14 13 12 11 10 9 Height (in feet) 7 NWU OO 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Horizontal Distance (in feet) How many feet from Bob did the ball land? A 10 B 12 C 18 D 21