Correct Answer – A
Amazon Macie is a fully managed data security and data privacy service that uses machine learning and pattern matching to help you discover, monitor, and protect sensitive data in your AWS environment.
Amazon Macie Classic is a security service that uses machine learning to automatically discover, classify, and protect sensitive data in AWS.
Macie Classic is supported in the following AWS Regions:
US East (N. Virginia) (us-east-1)
US West (Oregon) (us-west-2)
https://docs.aws.amazon.com/macie/latest/userguide/what-is-macie.html
https://docs.aws.amazon.com/macie/latest/user/what-is-macie.html
Option B is incorrect because observe, design, alert is not the main functional components of Amazon Macie.
Option C is incorrect because optimize, alert, secure is not the main functional components of Amazon Macie.
Option D is incorrect because detect, discover, alert are not the main functional components of Amazon Macie.