Explanation:

- Section 120-B, IPC - This section of the Indian Penal Code actually prescribes the punishment for the offence of criminal conspiracy. It applies when a person is found guilty of being involved in a criminal conspiracy.

- Section 120-A, IPC - This section only defines what criminal conspiracy is, but does not talk about its punishment.

- Section 144, CrPC - This is a section in the Criminal Procedure Code that empowers the Executive Magistrate to issue orders in urgent cases of nuisance or apprehended danger. It is unrelated to conspiracy or its punishment.

- None of the above - Not correct, since option 1 is correct.