Which of the following best describes an accomplice's role in a crime?

An accomplice plays a crucial role in facilitating a crime by providing assistance or support to the main perpetrators. This support may take various forms, such as helping to plan the crime, providing resources, or acting as a lookout during the commission of the unlawful act. Their involvement, while not as direct as that of the main actor, is still significant enough to render them legally accountable for the crime.

In contrast, the other roles described do not accurately fit the definition of an accomplice. The main actor is typically the person who physically commits the crime, while an intervenor actively works to prevent a crime from being completed. Reporting a crime to authorities reflects a decision to comply with the law rather than participate in a criminal act. Understanding the distinct roles in criminal proceedings helps clarify how the legal system categorizes participants in a crime.