Which combination of AWS services should the company use to meet these requirements?

Explanations:

AWS Glue is a fully managed ETL (extract, transform, load) service that helps discover, clean, enrich, and transform data. It fits well for the company’s need to transform data.

Amazon EFS is a scalable file storage system, but it does not provide data transformation, discovery, or visualization capabilities.

Amazon Redshift is a data warehouse service, suitable for large-scale data storage and querying but does not handle data transformation or discovery directly.

Amazon QuickSight is a business intelligence service that can visualize data, helping the company visualize and interpret the data once it’s transformed.

Amazon QLDB is a ledger database service used for immutable, transparent data tracking. It does not fit the requirements of data transformation or visualization.