A student can select one of 7 different math book, one of 3 different chemistry book & one of 4 different science book.In how many different ways students can select book of math, chemistry & science.  Choose the correct choice from the following options
A) 22  B) 84  C) 99  D) 37  E) 01
7C1×3C1×4C1 = 7x3x4=84 ways   Answer:84
<result>B</result>
A student can select one of 7 different math book, one of 3 different chemistry book & one of 4 different science book.In how many different ways students can select book of math, chemistry & science.