Which of the following are Linux desktop environments? (Choose two.)

X11 (X Window System) is a network-transparent display server protocol that renders graphics to a screen but does not itself provide a desktop shell, taskbar, or file manager.

Wayland is a modern display server protocol and compositor API that replaces X11 on many distributions but is not a desktop environment - desktop environments like GNOME or KDE run on top of it.

SPICE (Simple Protocol for Independent Computing Environments) is a remote display protocol designed for virtual machine consoles, not a local desktop environment.

VNC (Virtual Network Computing) is a remote desktop sharing protocol that streams framebuffer updates over a network connection and is not a standalone desktop environment.

MATE is a complete Linux desktop environment forked from GNOME 2 that provides a window manager, panel, file manager, and application suite, meeting the definition of a desktop environment.

KDE Plasma is one of the most widely deployed Linux desktop environments, delivering a comprehensive graphical workspace with a taskbar, application launcher, settings manager, and bundled applications.