Question

If A and B are any two events such that P (A) + P (B) − P (A and B) = P (A), then
(A) P (B|A) = 1

(B) P (A|B) = 1
(C) P (B|A) = 0

(D) P (A|B) = 0

Answer 1

Thus, the correct answer is B.