You have four servers that run Windows Server 2012 R2.
The servers have the Failover Clustering feature installed.
You deploy a new cluster named Cluster1. Cluster1 is configured as shown in the following table.

Site2 is a disaster recovery site. Server1, Server2, and Server3 are configured as the preferred owners of the cluster roles.
Dynamic quorum management is disabled.
You plan to perform hardware maintenance on Server3.
You need to ensure that if the WAN link between Site1 and Site2 fails while you are performing maintenance on Server3, the cluster resource will remain available
in Site1.
What should you do?

A.
Enable dynamic quorum management.

B.
Remove the node vote for Server3.

C.
Add a file share witness in Site1.

D.
Remove the node vote for [C1] Server4 and Server5.

Explanation:
http://msdn.microsoft.com/en-us/library/hh270280.aspx#VotingandNonVotingNodes