D= {xlx is a whole number}
e = {xlx is a perfect square between 1 and 9)
f = {xlx is an even number greater than or equal to 2 and less than 9}
which of the following is euf?
a. {2, 3, 4, 5, 6, 7, 8}
b. (3, 4, 5, 6, 7, 8)
c. (2, 4, 6, 8)
d. {4}