The correct answer includes the essential system software, printer drivers for currently used printers, additional fonts, language translations, and x11. It also mentions that optional items include more printer drivers, rosetta, and quicktime 7. This means that when installing Mac OS X, these packages are installed by default, providing the necessary system software, printer drivers, fonts, translations, and x11 support. Additionally, users have the option to install more printer drivers, rosetta, and quicktime 7 if needed.