Which pair(s) of events is (are) independent?

A and B given the following: P(A) = 0.4, P(B) = 0.3, P(A and B) = 0.16
C and D given the following: P(C) = 0.4, P(D) = 0.3, P(C|D) = 0.4
Select one:

A.
Neither pair

B.
C and D

C.
Both pairs