Explanation:

Let’s break it down:

- Derivative titles: These are titles you get from someone else—like inheriting property, not really about getting rid of rights, more about transfer or succession.

- Alienative facts: These are events or acts that cause a person to transfer property or rights to another, like selling your car. This can divest you of ownership.

- Extinctive facts: These facts put an end to a right entirely—like fulfilling a debt. Your obligation (right against you) simply vanishes.

- A & B (Derivative titles and Alienative facts): This option is saying both of the above can involve divestitive facts.

Divestitive facts are really about how someone loses a right or title, either by transferring them away or by having them end fully.

Here’s the thing: both alienative acts and, by extension, the derivative titles that come from those acts, can be divestitive facts, because both involve the original holder losing something.

The correct answer is:

Option:4, A & B