Final answer:
The standard directory for device special files is /dev. The correct path is not listed among the options, making the answer 'Cannot be determined'.
Step-by-step explanation:
The directory that contains device special files on a Linux system is typically /dev. None of the options listed explicitly give the correct path, but option number 2, /etc/dev, seems to be a typo since the standard directory used is /dev without the /etc prefix. Therefore, since the correct path is not listed as an option, the answer would be Cannot be determined.