You are the network administrator for Contoso, Ltd. The network consists of a single Active Directory forest, as shown in the exhibit.

A domain controller named dc1.corp.contoso.com runs Windows 2000 Server. All other domain controllers run Windows Server 2003. Contoso, Ltd., is engaged in a joint venture with Litware, Inc. The network at Litware, Inc., consists of a single Active Directory forest named litwareinc.com that contains one domain. The functional level of the litwareinc. com forest is Windows Server 2003.

You need to ensure that the users at Contoso, Ltd., can log on to the litwareinc.com forest. You upgrade dc1.corp.contoso.com to Windows Server 2003.

Which two additional courses of action should you take? (Each correct answer presents part of the solution. Choose two.)

A.
Raise the functional level of the corp.contoso.com domain and the east.corp.contoso.com domain to Windows 2000 native. Raise the functional level of the contoso.com forest to Windows Server 2003.

B.
Raise the functional level of the corp.contoso.com domain to Windows 2000 native. Raise the functional level of the east.corp.contoso.com domain to Windows Server 2003. Raise the functional level of the west.contoso.com domain to Windows Server 2003.

C.
Create a one-way forest trust relationship in which the contoso.com forest trusts the litwareinc.com forest.

D.
Create a one-way forest trust relationship in which the litwareinc.com forest trusts the contoso.com forest.