R is the set of positive even integers less than 20, 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 options
A) None B) Two C) three D) Five E) Seven
squares &lt; 20 {1,4,9,16}   S = {1,4,9,16}   R = {2,.....18}   Hence three.
<result>C</result>
R is the set of positive even integers less than 20, and S is the set of the squares of the integers in R. How many elements does the intersection of R and S contain ?