AsystemadministratorhasjustfinishedupgradingasystemtoAIX5.2.Iftherearefutureproblems,thesystemadministratorwouldliketoaddanentrytotheAIXerrorlogtorecordthisevent.Whichofthefollowingcommandscanbeissuedforthispurpose?()
A. /usr/bin/errmsg"SystemupgradedtoAIX5.2"
B. /usr/bin/errlog"SystemupgradedtoAIX5.2"
C. /usr/bin/errupdate"SystemupgradedtoAIX5.2"
D. /usr/bin/errlogger"SystemupgradedtoAIX5.2"