A company wants to migrate its on-premises application to AWS. The application produces output files ranging from tens of gigabytes to hundreds of terabytes. The data must be stored in a standard file system structure. The company wants an automatically scaling, highly available solution with minimal operational overhead. Which solution meets these requirements?

The correct solution is to migrate the application to Amazon EC2 instances in a Multi-AZ Auto Scaling group and use Amazon Elastic File System (Amazon EFS) for storage. Amazon EFS provides a scalable, highly available, and shared file system that can be mounted by multiple EC2 instances, meeting the requirement for a standard file system structure and supporting data sizes from gigabytes to hundreds of terabytes. EC2 instances in a Multi-AZ Auto Scaling group ensure high availability and automatic scaling. Using Amazon S3 with ECS containers is incorrect because S3 is object storage, not a standard file system, and would require application changes to interact with it. Using Amazon EBS with EKS containers or EC2 instances is incorrect because EBS volumes are block storage attached to a single instance in a single Availability Zone, making them unsuitable for shared access across multiple instances or for Multi-AZ deployments without complex replication.