The DevOps team at InnovTech Solutions is migrating application workloads to AWS, utilizing EC2, EFS, and RDS, and now needs to implement a new backup strategy to meet regulatory compliance. The backup solution must support custom retention policies (daily, weekly, monthly), immediate cross-region replication, a centralized backup status view, and immediate failure notifications, all with minimal operational overhead. Which combination of steps will meet these requirements with the LEAST amount of operational overhead? (Choose three.)