Which AWS service is a hybrid cloud storage service that provides on-premises users access to virtually unlimited cloud storage?

Explanations:

AWS DataSync is used to automate data transfer between on-premises storage and AWS, but it doesn’t provide direct hybrid cloud storage access.

Amazon S3 Glacier is a low-cost archival storage service, ideal for long-term storage and retrieval, but it does not facilitate hybrid cloud storage access for on-premises users.

AWS Storage Gateway provides a hybrid cloud storage solution that enables on-premises applications to access cloud storage, allowing virtually unlimited storage capacity by connecting to Amazon S3 and other AWS storage.

Amazon EBS provides block storage volumes for use with Amazon EC2 instances. It is not a hybrid storage service and is limited to being used within the AWS cloud environment.