The correct answer is C. switchdesk.
Switchdesk is a tool that allows you to change your default X Window desktop. It is a graphical tool that makes it easy to switch between different desktops. To use switchdesk, simply click on the icon in the taskbar and select the desktop you want to switch to.
A. utilinux is a Linux distribution that is designed for embedded systems. It is not a tool that allows you to change your default X Window desktop.
B. cempre is a tool that allows you to manage your computer’s memory. It is not a tool that allows you to change your default X Window desktop.
D. window is a command-line tool that allows you to manage windows. It is not a tool that allows you to change your default X Window desktop.
E. None of the above is a tool that allows you to change your default X Window desktop.