Which pillar of the AWS Well-Architected Framework supports making frequent, small, and reversible changes to your cloud environment?

Operational Excellence focuses on running and monitoring systems to deliver business value and continuously improving processes and procedures. Making frequent, small, and reversible changes is a core principle of operational excellence, as it reduces the blast radius of potential issues, allows for quick recovery, and enables continuous improvement through rapid iteration and learning. Security focuses on protecting information and systems. Cost Optimization is about achieving business value at the lowest price. Performance Efficiency is concerned with using computing resources efficiently. While these pillars are important, they don't directly address the practice of frequent, small, and reversible changes as a primary mechanism for improvement and stability.