Which of the following commands would disconnect the users and allow the administrator to safely execute maintenance tasks?

An administrator is having some trouble with a disk partition and needs to do maintenance on this
partition. The administrator’s users home directories are on it and several are logged in. Which of
the following commands would disconnect the users and allow the administrator to safely execute
maintenance tasks?

A.
telinit 1

B.
shutdown -r now

C.
killall -9 inetd

D.
/bin/netstop –maint

E.
/etc/rc.d/init.d/network stop