Which change management actions, according to the AWS Well-Architected Framework, should be followed to ensure AWS Cloud

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Which change management actions, according to the AWS Well-Architected Framework, should be followed to ensure AWS Cloud reliability? (Select two.)

A. Use AWS Config to generate an inventory of AWS resources
B. Use service limits to prevent users from creating or making changes to AWS resources
C. Use AWS CloudTrail to record AWS API calls into an auditable log file
D. Use AWS Certificate Manager to whitelist approved AWS resources and services
E. Use Amazon GuardDuty to validate configuration changes made to AWS resources