Which commands are used to disable Dial Home and email notifications before replacing the failed part?

A.
/nas/sbin/nas_connecthome -service stop
/nas/bin/nas_emailuser -modify -enabled no

B.
/nas/sbin/nas_connecthome –I
/nas/bin/nas_emailuser -modify -enabled no

C.
/nas/bin/nas_emailuser -modify -enabled no
/nas/sbin/nas_connecthome -service start –clear

D.
/nas/bin/nas_emailuser -modify -enabled yes
/nas/bin/nas_emailuser –info