Which design principle from the AWS Well-Architected Framework supports operational excellence in the cloud?

Make frequent, small, reversible changes" is a core principle of operational excellence. This approach minimizes the blast radius of any single change, making issues easier to identify, troubleshoot, and revert if necessary, thus improving operational stability and agility. "Go global in minutes" relates more to performance efficiency and global reach, not directly to operational excellence principles. "Implement a strong foundation of identity and access management" is a key principle of security, not operational excellence. "Stop spending money on hardware infrastructure for data center operations" describes a benefit of cloud adoption (cost savings, agility) but isn't a design principle for achieving operational excellence within the cloud itself.