Tide

-10123timenoonmidnightheight of tide3 a.m0.1 ftnoon2.1 ft7:30 p.m.-0.7 ftTides at Henlopen Park on September 8
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 8 at Henlopen Park?
A. 2.8
B. 2
C. 2.2
D. 1.7
E. 2.6