Al, Bill, and Cal will each randomly be assigned a whole number from 1 to 10 , inclusive, with no two of them getting the same number. What is the probability that Al’s number will be a whole number multiple of Bill’s and Bill’s number will be a whole number multiple of Cal’s?

**Answer Choices**

A. \dfrac{9}{1000}

B. \dfrac{1}{90}

C. \dfrac{1}{80}

D. \dfrac{1}{72}

E. \dfrac{2}{121}