A systems administrator needs to connect to a remote Linux machine to run system updates from within a graphical interface. Which of the following should the administrator use?

MATE is a desktop environment for Linux, providing a graphical user interface, but it is not a tool or protocol for remote access.

Wayland is a display server protocol that manages how applications draw to the screen; it is a component of a graphical environment, not a remote access solution itself.

VNC (Virtual Network Computing) is a protocol and system that enables sharing a graphical desktop interface remotely. This allows an administrator to connect from their client machine and visually interact with the remote Linux desktop environment to perform updates.

Unity is another desktop environment, formerly used by Ubuntu, and like MATE, it is not a tool for remote graphical access.