R is the set of positive odd integers less than 40, 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) Three C) Four D) Five E) Seven
squares &lt; 40 {1,4,9,16,25,36}   S = {1,9,25}   R = {1,3,.....40}   Hence Three.
<result>B</result>
R is the set of positive odd integers less than 40, and S is the set of the squares of the integers in R. How many elements does the intersection of R and S contain ?