How do you reset the printing system in OS X?
A. Navigate to /Library/Printers/ in the Finder, select all items, and move them to the Trash.
B. Open Printer Setup Utility and choose "Reset printing system" from the Printer Setup Utility menu.
C. Open the Printers & Scanners pane of System Preferences, Control-click the Printers list, and choose "Reset printing system" from the shortcut menu.
D. Open the Printers & Scanners pane of System Preferences, select all the printers in the Printers list, and click Delete (-).