The graph above shows the height of the tide, in feet, above or below a baseline. Which of the following is closest to the difference, in feet, between the heights of the highest and lowest tides on December 7 at Henlopen Park?
A. 2.8
B. 2.6
C. 2.2
D. 2.9
E. 3.2
A. 2.8
B. 2.6
C. 2.2
D. 2.9
E. 3.2
