Answer: AWS IAM Access Analyzer

The correct answer is C, AWS IAM Access Analyzer. This service helps in identifying resources in your AWS account, such as Amazon S3 buckets or IAM roles, that have been shared with external entities. It uses automated reasoning to analyze resource policies and identify any potential external access permissions. This is important for security as it allows users to quickly identify unintended access to their resources and data, which can be a significant risk.

Author: LeetQuiz Editorial Team