The correct answer is D. All of the above.
CHKDSK is a command-line utility for checking the integrity of a file system and fixing any errors found. It can also be used to defragment a disk, recover lost files, and display the status of files on a disk.
The CHKDSK command can be used to analyze the hard disk error by checking the file system for errors. If any errors are found, CHKDSK will attempt to fix them.
The CHKDSK command can also be used to diagnose the hard disk error by displaying information about the file system and the errors that were found.
The CHKDSK command can also be used to report the status of files on disk by displaying information about the files, such as their size, date, and time.