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Four red balls, four green balls and four blue balls are put in a box. Three balls are pulled our of the box at random one after another without replacement. The probability that all the three balls are red is

A. $$\frac{1}{{72}}$$

B. $$\frac{1}{{55}}$$

C. $$\frac{1}{{36}}$$

D. $$\frac{1}{{27}}$$

Answer: Option B

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