Tide

-10123timenoonmidnightheight of tide5.30 a.m.-0.5 ft11:30 a.m.2.4 ft5:30 p.m.-0.4 ftTides at Henlopen Park on November 18
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 November 18 at Henlopen Park?
A. 2.9
B. 2.8
C. 3
D. 2.6
E. 2.7