The correct answer is C, AWS Fargate. AWS Fargate is a serverless compute engine for containers that allows you to run containers without needing to manage the underlying infrastructure. It is designed to simplify the management of containerized applications by automatically handling tasks such as scaling, patching, and environment maintenance. With Fargate, you only need to define your application's resource needs, and it will take care of the rest. This makes it an ideal choice for companies looking to manage their Docker environments more efficiently without the overhead of managing EC2 instances.