Which option is a pillar of the AWS Well-Architected Framework?

Explanations:

Patch management is an important aspect of operational excellence but is not a primary pillar of the AWS Well-Architected Framework. The framework focuses on specific pillars that guide best practices for cloud architecture.

Cost optimization is one of the five pillars of the AWS Well-Architected Framework. It emphasizes maximizing the value of cloud investments by optimizing costs while ensuring performance and security.

Business technology strategy is not a pillar of the AWS Well-Architected Framework. The framework is more focused on technical pillars rather than broad strategic business concepts.

Physical and environmental controls are important for on-premises security and compliance but are not specific pillars of the AWS Well-Architected Framework, which is primarily concerned with cloud architecture best practices.