GCP Professional Cloud Architect Practice Question

Admin Activity logs are routed to the system-managed _Required bucket, which is free and has a 400-day retention policy. System Event logs share the same bucket and retention period. Data Access and Application logs are stored in the _Default bucket, where the standard retention is 30 days unless the organization changes the setting or exports the logs. Therefore, selecting Admin Activity logs with their 400-day retention satisfies the requirement to keep audit data for more than a year at no additional cost, whereas System Event, Data Access, and Application logs either have shorter default retention or may incur charges for extended storage.