If X and Y are two sets and X′ denotes the complement of X, then X ∩ (X ∪ Y)′ is equal to

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If X and Y are two sets and X′ denotes the complement of X, then X ∩ (X ∪ Y)′ is equal to

(A) X

(B) Y

(C) φ

(D) X ∩ Y

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