Tide

-10123timenoonmidnightheight of tide4 a.m.-0.5 ft1 p.m.2.4 ft7 p.m.0.3 ftTides at Henlopen Park on June 5
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 June 5 at Henlopen Park?
A. 2.9
B. 2.1
C. 2
D. 2.2
E. 2.4