Oracle9iprovidesadatabasepackagecalleddbms_redefinitiontoperformanonlinerebuildofatable.Whichtwostepsareyourecommendedtodopriortoissuingthedbms_redefinition_start_redeftableprocedurecall?()

A.Grandprivilegesontheinterimtable.

B.Invokethedbms_redefinition.can_redef_tableprocedure.

C.Invokethedbms_redefinition.sync_interim_tableprocedure.

D.Createanytriggers，indexes，orconstraintsontheinterimtable.

E.Createanemptyinterimtablewithallthedesiredcharacteristics.