Which AWS services can provide this information?

Explanations:

AWS Artifact provides access to compliance reports and security documentation but does not track changes in the AWS environment.

AWS Trusted Advisor offers recommendations for best practices, but it does not provide detailed tracking of changes made to the environment.

AWS Config tracks changes to AWS resources and provides a history of configuration changes, making it ideal for auditing changes in the environment.

AWS CloudTrail records API calls made in the AWS account, which allows auditors to see what changes were made and by whom, thus providing a complete audit trail of actions.

AWS Identity and Access Management (IAM) focuses on managing user permissions and access, not on tracking changes to the environment itself.