The company plans to use container-based workloads that run for about 4 hours at a time and does not want to provision or manage servers. Which AWS service should they choose?

AWS Fargate is the correct choice because it is a serverless compute engine for containers that allows you to run containerized applications without provisioning or managing servers. This aligns perfectly with the requirement for container-based workloads and not wanting to manage servers. AWS Lambda is serverless but designed for event-driven functions, not typically for long-running containerized applications like those running for 4 hours. Amazon EC2 requires you to provision and manage virtual servers, which contradicts the requirement. AWS Elastic Beanstalk is an orchestration service that simplifies deploying applications, but it still runs on underlying EC2 instances, meaning you would still be managing servers indirectly.