单选题A system is being booted into maintenance mode due to root password recovery.After accessing the root volume group and starting a shell without mounting the file systems, what is the next step?（）A Delete root's password from the /etc/security/passwd fi

Delete root's password from the /etc/security/passwd file

Use the diag recovery tool option to reset root's password

Execute the ‘passwd’ command and assign a new passwd to root UID

Mount the / and /usr filesystems on alternative mount points to edit the password file