YouhaveanExchangeorganizationthatcontainsExchange2000ServerandExchangeServer2003ServicePac

YouhaveanExchangeorganizationthatcontainsExchange2000ServerandExchangeServer2003ServicePack2（SP2）servers.YouplantotransitiontheorganizationtoExchangeServer2010.YouneedtopreparetheExchangeorganizationforthedeploymentofExchangeServer2010Mailbox，ClientAccess，andHubTransportservers.Whatshouldyoudofirst（）？

A、InstalltheActiveDirectoryConnector（ADC）.

B、DeleteallRecipientUpdateService（RUS）objects.

C、DeployanExchangeServer2010EdgeTransportserver.

D、RemoveallExchange2000Serverserversfromtheorganization.