8. If A = {2,4,6, 8}, B = {1,3,5, 7). Find A-B. a. { } b. 2,4,6,8) C. { 1,3,5,7} d.{1,2,3,4,5,6,7,8}

9. Given: U = {counting numbers from 5 to 10} A = {even numbers between 5 and 11} Find A'
a. {5, 7, 9}
b. {6,8,10}
c. {5,6,7,8,9}
d.{5,6,7,8,9,10}

10. Which of the following is an empty set?
a. A set of integer less than zero
b. A set of integers greater than zero.
C.A set of whole number less than zero. d.A set of whole number greater than zero​