Which PowerShell cmdlet installs the GUI and Hyper-V module for PowerShell?

The correct choice for installing the GUI and Hyper-V module for PowerShell is to use the cmdlet that handles the installation of Windows features. The cmdlet in question allows you to specify which feature you want to install, in this case, the RSAT (Remote Server Administration Tools) for Hyper-V, enabling management of Hyper-V through a graphical interface.

Using the RSAT-Hyper-V-Tools feature specifically targets administration tasks related to Hyper-V, providing both the GUI and necessary modules for enhanced management capabilities. This cmdlet is particularly effective on servers where the Hyper-V feature is not only installed but also requires the additional tools for better functionality and ease of use.

The other cmdlets, while related to Windows features or modules, do not specifically install the GUI along with the Hyper-V module in the same way. Some may target other features or be for updating existing modules rather than installing new components tailored for Hyper-V management. Thus, the choice that best fits the requirement for installing both the GUI and the module is indeed the cmdlet related to RSAT for Hyper-V.