Which one of the following actions requires the Integration Services feature?

The action that requires the Integration Services feature is the ability to move the mouse freely from the guest to the host. Integration Services provide enhanced interaction between the host and guest operating systems in a virtualized environment. This feature allows for seamless control of the mouse and keyboard, enabling users to easily navigate across virtual machines and the host system without needing to click to switch focus.

When Integration Services is installed and running, it facilitates improved performance and better integration, including features such as dynamic resizing of the guest operating system's display and shared clipboard functionality. This enhances user experience by allowing smooth transitions and interactions between the guest and host environments.

The other actions mentioned, such as installing additional disk drives, adjusting network bandwidth, and changing display resolution, do not specifically require Integration Services, as they can often be accomplished through standard virtual machine management tools or settings within the hypervisor without the reliance on this specific integration feature.