Correct Answer – A
Amazon Macie is a managed security service which can be used to detect personally identifiable information (PII) such as names, password, Credit card numbers from large amounts of data stored in Amazon S3 bucket.
Option B is incorrect as Amazon GuardDuty is used to identify threats by analyzing events from AWS CloudTrail, VPC Flow Logs, and DNS Logs. It cannot be used to detect PII from data stored in the Amazon S3 bucket.
Option C is incorrect as Amazon Inspector can analyze potential security threats for an Amazon EC2 instance against an assessment template with predefined rules.
Option D is incorrect as AWS Shield provides protection against DDOS attacks.
For more information on Amazon Macie, refer to the following URLs:
https://aws.amazon.com/macie/features/