Explanation:

Let’s break this down:

- Option 1: If a confession is made after the effect of any threat, inducement, or promise is totally gone, it can be relevant. That’s Section 28.

- Option 2: Confessions not made to a police officer are more likely to be relevant. Section 25 says what you tell the police doesn’t count as a confession.

- Option 3: If the accused confesses in front of a magistrate while in police custody, it holds up, as per Section 26.

- Option 4: All of these cover situations where a confession actually matters in court.

Correct Answer: Option 4 – All of them.