A consultant designs a disaster tolerance and disaster recovery solution in a Windows environment
using Enterprise Virtual Arrays (EVAs) and Cluster Extension EVAs (CLXs). Why should a majority
node be set or a fileshare witness be integrated in the design?

A.
to verify that source and destination copies are identical

B.
to prevent systems of LUN mapping changes in case of failover

C.
to provide protection against split-brain situations

D.
to guarantee the highest possible data consistency in the environment