You are a DBA at a retail company. The production databases are running in Cloud SQL for MySQL Enterprise Plus edition, version 8.0.34, in the us-centrall region. You need to set up and test disaster recovery (DR) with zero data loss in the us-west1 region. What should you do?

A. Use advanced DR by setting up a cascading read replica in the us-west1 region, and designate it as the failover DR replica. Test switchover by using the gcloud switchover command. B. Create a cross-region read replica, version 8.0.37, in the us-west1 region. Designate it as the failover DR replica, and test switchover by using the gcloud switchover command. C. Create a cross-region read replica version 8.0.34, in the us-west1 region. Designate it as the failover DR replica, and test switchover by using the gcloud switchover command. D. Create a cross-region read replica, version 8.0.34, in the us-west1 region. Test switchover by using the gcloud promote-replica with failover command.