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

Let C = {1,2,3,4} and D = {1, 2, 3, 4} thenwhich of the following hold

1.	Let C = {1,2,3,4} and D = {1, 2, 3, 4} thenwhich 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