Why is an AWS Well-Architected review a critical part of the cloud design process?

A. A Well-Architected review is mandatory before a workload can run on AWS.
B. A Well-Architected review helps identify design gaps and helps evaluate design decisions and related documents.
C. A Well-Architected review is an audit mechanism that is a part of requirements for service level agreements.
D. A Well-Architected review eliminates the need for ongoing auditing and compliance tests.