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题目材料:

In 1 serving of Brand K candy, the ratio of the number of Calories from carbohydrates to the total number of Calories in the serving is closest to which of the following fractions?
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A.$$\frac{1}{10}$$
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B.$$\frac{1}{5}$$
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C.$$\frac{3}{10}$$
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D.$$\frac{2}{5}$$
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E.$$\frac{3}{5}$$
D显示答案