$$\frac{3}{8}$$ of all students at Social High are in all three of the following clubs: Albanian, Bardic, and Checkmate. $$\frac{1}{2}$$ of all students are in Albanian, $$\frac{5}{8}$$ are in Bardic, and $$\frac{3}{4}$$ are in Checkmate. If every student is in at least one club, what fraction of the student body is in exactly 2 clubs?
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A$$\frac{1}{8}$$
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B$$\frac{1}{4}$$
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C$$\frac{3}{8}$$
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D$$\frac{1}{2}$$
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E$$\frac{5}{8}$$
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正确答案: A