Define the following sets:

A = {x is an element of Z: x is an integer multiple of 3}

B = {x is an element of Z: x is a perfect square}

C = {4,5,9,10}

D = {2,4,11,14}

E = {3,6,9}

F = {4,9,16}

a.E F =

b.(C F) E =

c.C - B =

d.B bar D

e.A bar (C D)