YouinstallanewExchangeServer2010server.YouneedtoensurethatuserscanconnectfromtheInternettotheserverbyusingExchangeActiveSync.WhatshouldyoudoontheExchangeserver?()

A.ModifytheinternalURLfortheMicrosoft-Server-ActiveSyncvirtualdirectory.

B.ModifytheexternalURLfortheMicrosoft-Server-ActiveSyncvirtualdirectory.

C.EnableAnonymousAuthenticationfortheMicrosoft-Server-ActiveSyncvirtualdirectory.

D.EnableWindowsIntegratedAuthenticationfortheMicrosoft-Server-ActiveSyncvirtualdirectory.