A user has used all of the allowed logon attempts for the userid. Which command can be used to reset the unsuccessful_login_count to 0 for that user？（）

A./var/rmc/ctrmc.acls
B./etc/ctrmc/rsct.acls
C./etc/security/rsct.acls
D./usr/sbin/rsct/cfg/ctrmc.acls

A./usr/bin/errmsg
B./usr/lib/errdemon
C./usr/lib/errlogger
D./usr/bin/errinstall

A.chvg -Qn testvg
B.chlv -Qn testlv
C.varyoffvg testvg； varyonvg -Qn testvg
D.varyoffvg testvg； exportvg testvg； importvg -Qn testvg； varyonvg testvg