I'll give you a question, please answer with step-by-step reasoning process.
If P(A) = 6/17, P(B) = 5/17, and P(A ∪ B) = 4/17 Find P(B|A)?\nOptions:\n(A) 2/3\n(B) 3/5\n(C) 2/7\n(D) 3/7\n(E) 4/9

(A)
P(B|A) = P(A ∪ B)/P(A)\nP(B|A) = (4/17)/(6/17) = 4/6 = 2/3.

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The answer: (A)