单项选择题

A.Youhavecompletedrestructuringtheorganizationalunithierarchyforthedomainanddeletedtheneedlessobjects.WhatwouldyoudotoperformanofflinedefragmentationoftheActiveDirectorydatabaseonCKD20whileensuringthatthecriticalservicesremainonline()
A.OpentheMicrosoftManagementConsole(MMC)andstoptheDomainControllerservice.Afterthat,runthedefragtool
B.StartthedomaincontrollerintheDirectoryServicerestoremodeandruntheNtdsutiltool
C.StartthedomaincontrollerandthenusetheDefragtooltostartdefragmentation
D.OpentheMMCandstoptheDomainControllerservice.Afterthat,runtheNtdsutiltool.
E.Alloftheabove