YourcompanyhasasingleActiveDirectorydomain.AlldomaincontrollersrunWindowsServer2003.YouinstallWindowsServer2008R2onaserver.Youneedtoaddthenewserverasadomaincontrollerinyourdomain.Whatshouldyoudofirst()
A. Onthenewserver,rundcpromo/adv.
B. Onthenewserver,rundcpromo/createdcaccount.
C. Onadomaincontrollerrunadprep/rodcprep.
D. Onadomaincontroller,runadprep/forestprep.