A pump started filling an empty pool with water and continued at a constant rate until the pool was full. At noon the pool was $$\frac{1}{3}$$ full, and $$\frac{11}{4}$$ hours later it was $$\frac{3}{4}$$ full. What was the total number of hours that it took the pump to fill the pool?
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A$$\frac{21}{3}$$
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B$$\frac{22}{4}$$
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C3
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D$$\frac{31}{2}$$
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E$$\frac{32}{3}$$
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正确答案: C