Tide

-10123timenoonmidnightheight of tide5 a.m.-0.8 ft11:30 a.m.2.2 ft7 p.m.-0.5 ftTides at Virginia Beach on September 7
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 September 7 at Virginia Beach?
A. 3
B. 2.7
C. 2.5
D. 2.2
E. 2.4