The correct answer is C. Undelete/list.
The Undelete command is used to undelete files that have been deleted from a DOS partition. The Undelete command can be used to undelete individual files or all of the deleted files on a partition.
To undelete an individual file, use the following syntax:
undelete filename
To undelete all of the deleted files on a partition, use the following syntax:
undelete /all
To display a list of deleted files that DOS can undelete, use the following syntax:
undelete /list
The Undelete command will display a list of all of the deleted files on the partition, along with the date and time that the files were deleted. You can then use the Undelete command to undelete any of the listed files.
The Undelete command is a powerful tool that can be used to recover important files that have been accidentally deleted. However, it is important to note that the Undelete command can only undelete files that have not been overwritten. If a file has been overwritten, it cannot be recovered using the Undelete command.
Therefore, it is important to use the Undelete command as soon as possible after a file has been deleted. The longer you wait, the more likely it is that the file will be overwritten and cannot be recovered.