Tide

-10123timenoonmidnightheight of tide4 a.m.-0.5 ftnoon2.1 ft6 p.m.-0.7 ftTides at Sandy Point on April 7
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 April 7 at Sandy Point?
A. 2.8
B. 2.6
C. 2.4
D. 2.2
E. 2.7