A RedHat Linux 6 System Includes a Specific File Folder

Multiple Choice

A RedHat Linux 6 system includes a specific file folder read and write errors, the file system needs to be modified after the diagnosis.  Which of the following is the correct repair operations?

A) Direct use of the root user, in the case of the file system is mounted fsck repair
B) Using the owner of the user data file, perform an fsck fix if the file system is mounted
C) Use the owner of the user data file to perform a fsck fix on the device if the file system is unmounted
D) Using the root user, perform a fsck fix on the device while the file system is unmounted