3. Which of the following is correct cardinality of " W = {whole numbers between 10 and 11 } "? * A. n(W) =2
B. n(W) =1
C. n(W)= { }
D. n(W) = 3

4. What is the cardinality of " S = {month in a year starting with letter J } "? *

A. n(S) =2
B. n(S) =1
C. n(S)= { }
D. n(S) = 3