An online learning company is migrating to the AWS Cloud. The company stores student records in a PostgreSQL database and requires the data to be available and online across multiple AWS Regions at all times. Which solution meets these requirements with the LEAST operational overhead?

The correct solution is to migrate to an Amazon RDS for PostgreSQL DB instance and create a read replica in another Region. This meets the requirement for data availability and online access across multiple AWS Regions. An RDS Multi-AZ deployment provides high availability within a single Region, but not across multiple Regions. A cross-Region read replica offers disaster recovery and read scaling across Regions with managed operational overhead. Migrating to PostgreSQL on Amazon EC2 instances would provide flexibility but significantly increases operational overhead for patching, backups, and high availability compared to RDS. Setting up DB snapshots to be copied to another Region provides disaster recovery but does not ensure the data is "available and online" for immediate use in the other Region without manual restoration and potential data loss since the last snapshot.