If two events, A and B, are independent and the probability of A does not equal the probability of B (i.e.,P(A)≠P(B)), then the probability of event A given that event B has occurred (i.e., P(A ∣ B)) is best described as:
A is correct. Two events, A and B, are independent if and only if P(A|B) = P(A) or, equivalently, P(B|A) = P(B). The wording of the question precludes P(A) = P(B); therefore, responses B and C cannot be correct.