Let C = {1,2,3,4} and D = {1, 2, 3, 4} then which of the following hold not true in this case?

Let C = {1,2,3,4} and D = {1, 2, 3, 4} then which of the following hol

1.	Let C = {1,2,3,4} and D = {1, 2, 3, 4} then which of the following hold not true in this case?
A.	C – D = D – C
B.	C U D = C ∩ D
C.	C ∩ D = C – D
D.	C – D = Φ
Answer» D. C – D = Φ

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