Slack defines every Audit Logs API event around four principal components: action, actor, entity, and context. The action specifies what occurred—for example, a user login, application installation, role change, or file-related administrative event. The actor identifies the user, application, or system responsible for performing the action. The entity represents the Slack resource affected by that action. The context provides environmental information surrounding the event, such as the location, workspace, organization, or session-related information relevant to interpreting what happened. Slack summarizes this relationship conceptually as an actor taking an action on an entity within a context. This structured model enables security teams to ingest Slack audit data into SIEM, monitoring, anomaly-detection, and forensic-analysis systems. Option A substitutes the vague terms “event” and “user,” which do not reflect Slack's formal audit schema. Option B incorrectly replaces entity with team, and D omits context. For certification purposes, these four fields are foundational because Audit Logs API workflows depend on understanding who performed an activity, what activity occurred, which resource was affected, and the surrounding operational context. This question belongs to APIs for Managing Your Slack, specifically the Audit Logs API data model.