Use the following information to answer the given questions: n(A ∩ B) = 4, n(A ∩ B ∩ C) = 1, n(B ∩ C) = 8, n(B − A) = 9, n(B ∪ C) = 23, n(A ∩ C) = 6, n(A ∪ B ∪ C) = 35, n(B’) = 32.
a. How many elements are there in C − B?
b. How many elements are there in A’?
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