For regulatory compliance, you need an audit trail for GCP resource access and the ability to analyze these logs. What combination of services would you use?

*Explanation:* Option A meets most of the needs but doesn't cover real-time analysis. Option B references Stackdriver, which has been integrated into Cloud Monitoring/Logging, and Pub/Sub, which is not ideal for historical analysis. Option C involves Cloud Security Command Center and Data Loss Prevention, which are more security-focused than audit-focused. Option D provides an end-to-end solution for audit logs and their analysis. Option E suggests custom-built functions, which can be risky, and Cloud SQL, which is not the best choice for log storage.