Which expression gives the orange region? (′ means the complement within U.)

Question

Accepted Answer

(A ∩ B ∩ C) ∪ (A ∪ B ∪ C)′. Two separate parts are shaded: the centre, common to all three circles, and the area outside every circle. Together that is (A B C) (A B C)'. (A B C)' would shade everything except the centre.

Which expression gives the orange region? (′ means the complement within U.)

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