Your company has offices in three locations. You have an Active Directory directory service domain with three Active Directory sites named Site1, Site2, and Site3. Each site represents a physical location with multiple subnets. There is one domain controller in each site. All sites are connected through site links. The domain controller in Site1 is not accessible. You need to ensure that clients in Site1 are authenticated by the domain controller in Site3. What should you do?
A.
Create a preferred bridgehead server in Site3.
B.
Associate Site1 subnets with Site3.
C.
Increase the cost of the site link between Site1 and Site3.
D.
Lower the weight for DNS service locator (SRV) records on the domain controller in Site3.