Your department decided to change the Gnome Display Manager's greeting. What configuration file should you edit?

/etc/gnome/greeting is not a recognized GDM configuration path and does not exist in a standard GDM installation.

/opt/gnome/share/greeting is not a valid GDM configuration file - resources under that path are installed application data, not editable greeting configuration files.

/etc/X11/gmd.conf contains a typo ('gmd' instead of 'gdm') and is not the correct file for configuring the GDM greeting.

The GDM Init/Default script at /etc/X11/gdm/Init/Default is executed by the Gnome Display Manager before the login screen appears and is the designated location for customizing the pre-login greeting. Editing this script allows administrators to change the message or behavior shown to users at the display manager prompt.