Which of the following is a managed AWS service that is used specifically for extract, transform, and load (ETL) data?

Explanations:

Amazon Athena is an interactive query service that allows users to analyze data in Amazon S3 using standard SQL. It is not specifically designed for ETL tasks.

AWS Glue is a fully managed ETL service that simplifies the process of preparing and transforming data for analytics. It automates much of the ETL workflow.

Amazon S3 is a scalable object storage service. While it can store data used in ETL processes, it does not perform ETL functions itself.

AWS Snowball Edge is a data transfer device used for transferring large amounts of data to and from AWS. It does not provide ETL capabilities.