AWS Certified Advanced Networking - Specialty (#8)

Your organization requires strict adherence to a change control process for its Amazon Elastic Compute Cloud (EC2) and VPC environments. The organization uses AWS CloudFormation as the AWS service to control and implement changes. Which combination of three services provides an alert for changes made outside of AWS CloudFormation? (Select three.)

AWS Config
AWS Simple Notification Service
AWS CloudWatch metrics
AWS Lambda
AWS CloudFormation
AWS Identify and Access Management