Explanation:

- Emile Durkheim described suicide as resulting from both positive and negative acts.

- A positive act of suicide involves the person directly doing something to bring about their own death.

- Option 1: Remaining inside the burning building – This can be both passive (refusing to escape) but not strictly a positive, direct act.

- Option 2: Shooting oneself – This is a clear, direct, and positive act.

- Option 3: Starvation – This is generally viewed as a negative act (not doing something, i.e., refusing to eat).

- Option 4: All – Only option 2 strictly fits the definition of a positive act, not all the options.

Correct Answer: Option 2 – Shooting oneself