A.Alistoffilesthatrequireabackupwithin3days
B.Alistoffilesrequiringmorethan3daysofarchivelogstoapply
C.AlistoffilesthatRMANrecommendsbebackeduponlyonceineverythreedays,basedonlowvolatility
D.Alistoffilesforwhichabackupasalreadybeenperformedinthelastthreedaysandwhichisrequiredtobebackedupagainbasedonthehighnumberoftransactionsperformedonthem