Your network consists of one Active Directory forest that contains four Active Directory domains named Sales, Marketing, Finance, and IT.
The Finance domain contains a domain controller that runs Windows Server 2008.
The Sales, Marketing, and IT domains contain only domain controllers that run Windows Server 2003.
You need to prepare the environment for the deployment of a read-only domain controller (RODC) in the Finance domain and in the IT domain. You must ensure that the RODC can advertise itself as a global catalog server.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)
A.
Upgrade all DNS servers to Windows Server 2008.
B.
Run adprep /domainprep on the Sales, Marketing, and IT domains.
C.
Install a Windows Server 2008 writable domain controller in the IT domain.
D.
Configure the Windows Server 2008 domain controller in the finance domain as a global catalog server.