A company operates an e-commerce application hosted on Amazon EC2 instances in an Auto Scaling group behind an Application Load Balancer (ALB). Customer transactions and order information are stored in an Amazon Aurora PostgreSQL DB cluster. The company wants to implement a disaster recovery (DR) plan to prepare for Region-wide outages. The DR solution must provide a recovery time objective (RTO) of 30 minutes. The DR infrastructure does not need to be operational unless the primary Region becomes unavailable. Which solution will meet these requirements?