Final answer:
When a Microsoft Office 365 ProPlus license is deactivated on a device, users can still view documents but cannot edit, create new ones, or access other Office 365 features.
Step-by-step explanation:
If you are the Microsoft 365 administrator for a company and you have deactivated a Microsoft Office 365 ProPlus license on one of the devices, the task that you can perform on the deactivated device is c) View documents but not edit them. Once a Microsoft Office 365 ProPlus license is deactivated on a device, the installed Office applications enter a reduced functionality mode. In this mode, users can still open and view documents but cannot edit them, create new ones, or save them. Also, they cannot access other Office 365 features that require an active subscription.