Tide

-10123timenoonmidnightheight of tide5 a.m.-0.5 ftnoon2.3 ft6:30 p.m.0.4 ftTides at Virginia Beach on October 23
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 23 at Virginia Beach?
A. 2.8
B. 1.9
C. 1.8
D. 2.2
E. 1.6