If 3 people can do 3 times of a particular work in 3 days, then how many days would it take 9 people to do 9 times of that particular work?  Choose the most appropriate option:
A) 1
B) 2
C) 3
D) 9
E) 12
3 people can do the work one time in one day.   1 person can do 1/3 of the work in one day.   9 people can do 9/3 of the work in one day.   9 people can do 9 times the work in 3 days.   The answer is 3.
<result>C</result>
If 3 people can do 3 times of a particular work in 3 days, then how many days would it take 9 people to do 9 times of that particular work?