Tide

-10123timenoonmidnightheight of tide4 a.m.-0.8 ftnoon2.1 ft7 p.m.-0.3 ftTides at Henlopen Park on November 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 November 8 at Henlopen Park?
A. 2.9
B. 2.4
C. 3.2
D. 2.8
E. 3.1