Which pillar of the AWS Well‑Architected Framework addresses a system’s ability to recover from failures and to automatically acquire resources to meet demand?

The Reliability pillar of the AWS Well-Architected Framework focuses on a system's ability to recover from infrastructure or service disruptions, dynamically acquire computing resources to meet demand, and mitigate disruptions such as misconfigurations or transient network issues. This includes strategies for high availability, disaster recovery, and fault tolerance. Security (A) focuses on protecting information and systems. Performance efficiency (C) is about using computing resources efficiently and maintaining efficiency as demand changes. Cost optimization (D) is about avoiding unnecessary costs. While these are all important pillars, only Reliability specifically addresses recovery from failures and automatic resource acquisition for demand.