Explanation:

- Option 1: Refers to a perpetrator, the main individual who directly engages in the criminal activity. An accomplice can support but isn't only restricted to the primary actor of a crime.

- Option 2: An accessory assists or abets the crime before or after the fact without being present during the crime. An accomplice can take part in either or both roles.

- Option 3: This means an accomplice can either commit a crime directly or help someone else, covering both direct participation and assistance.

- Option 4: Suggests neither applies, which is incorrect since both perpetration and aiding are roles of an accomplice.