3 Please help?A, B, C

Which pairs of events are independent? (a) P(A) = 0.29, P(B) = 0.52, P(AnB) = 0.12. A and B are (b) P(A) = 0.31, P(B) = 0.21, P(An B) = 0.05. A and B are A and B are (c) P(A) = 0.80, P(B) = 0.30, P(AnB) = 0.30. A and B are