R is the set of positive odd integers less than 100, and S is the set of the squares of the integers in R. How many elements does the intersection of R and S contain ?	Choose the correct choice from the following answers:	A) None	B) Two	C) Four	D) Five	E) Seven
R is the set of positive odd integers less than 100, and S is the set of the squares of the integers in R.   How many elements does the intersection of R and S contain?   R=1,3,5,7,9,11,13,15...   S=1,9,25,49,81...   Numbers: 1, 9, 25, 49, and 81 are odd integers (less than 100) that are in both sets.   Solution: Five   Answer: Five
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R is the set of positive odd integers less than 100, and S is the set of the squares of the integers in R. How many elements does the intersection of R and S contain ?