RPM Question


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Tide

-10123timenoonmidnightheight of tide3.30 a.m.-0.1 ftnoon2 ft6 p.m.0 ftTides at Ocean City on June 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 June 28 at Ocean City?
A. 2.1
B. 2.5
C. 1.6
D. 2
E. 1.8