### Question 4

When A and b are subsets of set S, which of the following represents （￢A ∩ ￢B） Here, ￢A and ￢B are complement of subsets A and B of set S respectively, and X-Y is a difference set of set X and set Y.

a) （￢A∪￢B）－（A∩B）

b) （S－A）∪（S－B）

c) ￢A－B

d) S－（A∩B）

answer

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