Tide

-10123timenoonmidnightheight of tide3.30 a.m.-0.5 ft11 a.m.2 ft6:30 p.m.0.1 ftTides at Bay Cove on January 9
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 January 9 at Bay Cove?
A. 2.5
B. 1.9
C. 2.7
D. 2.3
E. 1.7