If two events A and B are dependent, the conditional probability of A given B, i.e., P (A/B) is calculated as:

The correct answer is: C. P(AB) / P(A)

The conditional probability of A given B, i.e., P (A/B), is the probability of event A occurring given that event B has already occurred. It is calculated as follows:

P(A/B) = P(AB) / P(B)

where P(AB) is the probability of both events A and B occurring, and P(B) is the probability of event B occurring.

Option A is incorrect because it is the conditional probability of B given A.

Option B is incorrect because it is the probability of event B occurring.

Option D is incorrect because it is the probability of both events A and B occurring.