A.Use the Active Directory Sites and Services console to configure a new site link bridge object
B.Use the Active Directory Sites and Services console to decrease the site link cost between Site1 and Site2.
C.Use the Active Directory Sites and Services console to assign a new IP subnet to Site2. Move the new domain controller object to Site2
D.Use the Active Directory Sites and Services console to configure the new domain controller as a preferred bridgehead server for Site1.