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 January 4 at Sandy Point?
A. 3.1
B. 2.8
C. 3
D. 3.6
E. 3.3
A. 3.1
B. 2.8
C. 3
D. 3.6
E. 3.3