Let A, B, and C be subsets of a universal set U and suppose n(U) = 150, n(A) = 27, n(B) = 29, n(C) = 33, n(A ∩ B) = 5, n(A ∩ C) = 9, n(B ∩ C) = 13, and n(A ∩ B ∩ C) = 4. Compute: (a)    n[A ∩ (B ∪ C)] (b)    n[A ∩ (B ∪ C)c]

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A: We have given the following n(U) = 300, n(A) = 150, n(B) = 120, and n(A ∩ B) = 60.