YournetworkcontainsanActiveDirectorydomaincontrollernamedDC1.DDC1runsWindowsServer2008R2.YouneedtodefragmenttheActiveDirectorydatabaseonDC1.ThesolutionmustminimizedowntimeonDC1.Whatshouldyoudofirst()
A.Atthecommandprompt,runnetstopntds.
B.Atthecommandprompt,runnetstopnetlogon.
C.RestartDC1inSafeMode.
D.RestartDC1inDirectoryServicesRestoreMode(DSRM).