YouareconnectedtoRecoveryManager（RMAN）withoutarecoverycatalog.Thereisnocopyofthecontrolfileavailable.Youwanttorestorethecontrolfilefromanautobackup.Toretrievetheautobackup，youneedthedatabaseID（DBID）.InwhichtwosourceswouldyoufindtheDBID？（）
A.thealertlogfile
B.theserverparameterfile
C.theformattednameofacontrolfileautobackup
D.anRMANsessionlogfile
E.thetracefile