Explanation:

- Section 100 of IPC:

- This section addresses scenarios where the right to private defence includes the right to cause death.

- It applies when there is a reasonable apprehension of death or grievous hurt.

- Other situations include prevention of rape, kidnapping, and wrongful confinement.

- Section 101 of IPC:

- This section also discusses the right to private defence of the body.

- However, it limits the right to cause any harm other than death in certain situations.

- Section 102 of IPC:

- This section defines the duration of the right to private defence.

- The right commences as soon as a reasonable apprehension of danger arises and continues until such apprehension ceases.

- Option 4: None:

- Not applicable, as sections 100, 101, and 102 cover aspects of the right to private defence.