Tide

-10123timenoonmidnightheight of tide4 a.m.0.5 ft11:30 a.m.2.1 ft5:30 p.m.-0.9 ftTides at Ocean City on October 25
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 October 25 at Ocean City?
A. 3
B. 1.6
C. 1.5
D. 2.4
E. 2.2