You have a virtual machine named VM1 that runs on a host named Host1.
You configure VM1 to replicate to another host named Host2. Host2 is located in the same physical location as
Host1.
You need to add an additional replica of VM1. The replica will be located in a different physical site.
What should you do?

A.
From VM1 on Host2, click Extend Replication.

B.
On Host1, configure the Hyper-V settings.

C.
From VM1 on Host1, click Extend Replication.

D.
On Host2, configure the Hyper-V settings.

Explanation:
Extend Replication through UI:
Before you Extend Replication to third site, you need to establish the replication between a primary server and
replica server.
Once that is done, go to replica site and from Hyper-V UI manager select the VM for which you want to extend
the replication. Right click on VM and select “Replication->Extend Replication …”. This will open Extend
Replication Wizard which is similar to Enable Replication Wizard.
NOTE: You configure a server to receive replication with Hyper-V Manager, in this situation the replica site is
assumed to be the Replica Server. Therefore you extend replication from VM1 on Host2.
Note 2: With Hyper-V Extend Replication feature in Windows Server 2012 R2, customers can have multiple
copies of data to protect them from different outage scenarios. For example, as a customer I might choose to
keep my second DR site in the same campus or a few miles away while I want to keep my third copy of data
across the continents to give added protection for my workloads. Hyper-V Replica Extend replication exactly
addresses this problem by providing one more copy of workload at an extended site apart from replica site.
Hyper-V Replica: Extend Replication
http://blogs.technet.com/b/virtualization/archive/2013/12/10/hyper-v-replica-extend-replication.aspx