Tide

-10123timenoonmidnightheight of tide4 a.m.0.3 ft1 p.m.2.4 ft6 p.m.0.5 ftTides at Henlopen Park on May 28
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 May 28 at Henlopen Park?
A. 2.1
B. 1.9
C. 1.4
D. 2.5
E. 2.4