Suppose that B1 and B2 are mutually exclusive and complementary events, such that P(B1) = 0.6 and P(B2) = 0.4. Consider another event A such that P(A | B1) = 0.2 and P(A | B2) = 0.5. Find P(A). a) 0.38 b) 0.70 c) 0.88 d) 0.32