Containers do not provide easy portability because they are dependent upon the host operating system. Hypervisors are used to host virtual machines on a device, so that is another incorrect answer. Serverless computing is a platform-as-a-service model that allows cloud customers to run their own code on the provider’s platform without provisioning servers, so that is also incorrect. Virtual machines are self-contained and have their own internal operating system, so it is possible to move them between different host operating systems.