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 15 at Sandy Point?
A. 2.9
B. 2
C. 3
D. 1.6
E. 2.2
A. 2.9
B. 2
C. 3
D. 1.6
E. 2.2