Your company has a single Active Directory directory service domain. The company has five Active Directory sites on the West coast and five Active Directory sites on the East coast. The West coast sites and the East coast sites are in two separate hub-and-spoke configurations that are separated by a firewall. All Active Directory replication between the West coast and East coast occurs between a single West coast domain controller named WestDC1 and a single East coast domain controller named EastDC1. You need to ensure that if WestDC1 fails, other West coast domain controllers continue to replicate with each other, but not with East coast domain controllers. What should you do?
A.
Create site links between the West coast hub site and the West coast spoke sites.
B.
Create a site link bridge between the West coast hub site and the East coast hub site.
C.
Clear the Bridge all site links option and create a site link bridge for all the East coast sites.
D.
Clear the Bridge all site links option and create a site link bridge for all the West coast sites.