Which AWS service lets a company define and centrally enforce data-protection policies across compute, storage, and database resources?

AWS Backup is the correct answer because it is a fully managed backup service that centralizes and automates data protection across AWS services. It allows you to define backup policies, schedule backups, and restore data for various resources like EC2 instances, EBS volumes, RDS databases, and more, ensuring compliance and data resilience. AWS Batch is incorrect because it is a service for running batch computing workloads, not for data protection or backup. AWS Elastic Disaster Recovery is incorrect because it focuses on minimizing downtime and data loss by rapidly recovering applications and data in the cloud, which is a disaster recovery solution, not a centralized backup management service. Amazon FSx is incorrect because it provides fully managed third-party file systems, not a centralized backup solution for diverse AWS resources.