Which service can be configured to provide logging about storage use?

Amazon S3 is the correct answer because it includes built-in features specifically designed for logging storage use through S3 Server Access Logging. This service allows users to capture detailed records of requests made to S3 buckets, which can provide insights into how storage is being utilized, such as who accessed the data, the time of access, and the specific requests made.

CloudWatch, while it monitors AWS resources and can track metrics related to storage use, it does not natively provide logging of specific object-level access within S3 unless custom metrics are configured. Amazon EC2 is focused on virtual server resources rather than storage logging for S3. AWS IAM deals with identity and access management and does not directly log storage usage; it is more concerned with permissions and security policies regarding resource access.