Tide

-10123timenoonmidnightheight of tide4:30 a.m.0.4 ft11 a.m.2.4 ft7 p.m.-0.9 ftTides at Virginia Beach on October 10
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 October 10 at Virginia Beach?
A. 3.3
B. 2
C. 3.4
D. 1.6
E. 3.1