A company is designing a disaster recovery (DR) strategy for a production application backed by an Amazon Aurora MySQL cluster in the us-east-1 Region. The DR Region is us-west-1. The company's RPO is 5 minutes and RTO is 20 minutes. The company wants to minimize configuration changes and maximize operational efficiency. Which solution meets these requirements?

An Aurora global database is the most suitable solution because it provides a fully managed, low-latency cross-Region replication with an RPO of typically less than 1 second and an RTO of less than 1 minute, easily meeting the company's requirements of RPO 5 minutes and RTO 20 minutes. It also simplifies DR by minimizing configuration changes and maximizing operational efficiency through managed failover. Creating an Aurora read replica in us-west-1 would not provide the necessary RPO/RTO for a full DR scenario, as it's primarily for read scaling and not designed for rapid, managed failover of the primary writer. Creating a new Aurora cluster with Cross-Region Replication is not a native Aurora feature in the same way Global Database is; Global Database is the specific, managed solution for this. Using AWS DMS for synchronization would introduce additional complexity, management overhead, and potentially higher latency, making it less efficient and harder to meet the RPO/RTO compared to Aurora Global Database.