The correct option is Provide traceability of Copilot-related user activities and configuration events.

GitHub Copilot Business records detailed entries about who did what and when across Copilot configuration and usage. This includes seat assignments and revocations, changes to policies and settings, and enablement or disablement across the organization and repositories. These audit logs exist to deliver traceability that supports compliance reviews and investigations rather than to manage billing or direct data export.

Track subscription billing and forecast monthly charges is not the purpose of the audit log because billing and usage reporting are handled in billing and usage views rather than in the audit trail.

Export Copilot audit events to BigQuery for centralized analytics is not the primary function of the audit log. GitHub supports audit log streaming to supported storage services and SIEM targets, and you could later load that data into BigQuery, yet that is an integration pattern rather than the reason the feature exists.

Log administrator choices about telemetry and privacy toggles only is too narrow. Copilot audit events cover a broad set of user and administrator activities such as seat management and configuration updates, so they are not limited to privacy toggles.

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