Explanation:
When we say P(A B) = 0, it means that the probability of both events A and B occurring together is zero. Based on this information, we can conclude that the two events are mutually exclusive.

Mutually Exclusive Events:
Mutually exclusive events are the events that cannot occur simultaneously. In other words, if one event occurs, the other event cannot occur at the same time. For example, if we toss a coin, the events of getting a head or a tail are mutually exclusive because we cannot get both a head and a tail at the same time.

In the given question, the probability of both events A and B occurring together is zero, which means that the occurrence of one event excludes the occurrence of the other event. Therefore, we can conclude that the two events A and B are mutually exclusive.

Other options:
The other options, exhaustive, equally likely, and independent, cannot be concluded from the given information.

- Exhaustive events are the events that cover all possible outcomes. However, we do not have any information about whether A and B are exhaustive or not.
- Equally likely events are the events that have the same probability of occurring. However, we do not have any information about the probabilities of A and B.
- Independent events are the events that do not affect each other's probability of occurring. However, we do not have any information about the relationship between A and B.

Therefore, the correct answer is option 'A', mutually exclusive.

A