The correct answer is: B. /sbin/edquota
/sbin/edquota is a command-line utility used to edit user and group quotas. It is a text-based editor that allows you to view and modify the quotas for a user or group.
/sbin/usrquota is a file that contains the user quotas for a system. It is a binary file that can be edited with a text editor, but it is not recommended to do so. If you need to modify the user quotas, you should use /sbin/edquota.
/sbin/quotaon is a command that is used to turn on quotas for a filesystem. It is not used to set quotas.
/sbin/quota is a command that is used to display the quotas for a filesystem. It is not used to set quotas.
E. None of the above is not the correct answer.