An integer between 1000 and 9999, inclusive, is chosen at random. What is the probability that it is an odd integer whose digits are all distinct?
A. 1475\frac{14}{75}
B. 56225\frac{56}{225}
C. 107400\frac{107}{400}
D. 725\frac{7}{25}
E. 925\frac{9}{25}

Multiplication principle中文
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B. 56225\frac{56}{225}

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