Which statement is true about SQL database replication in a cluster?

A.
One server is designated as the publisher and all others are subscribers.
Database replication for CallManager configuration information is one-way from publisher to subscribers.

B.
All SQL servers are equal in the cluster.
Each server establishes SDL links to all the other servers in the cluster to replicated changes to the CallManager configuration information.

C.
All SQL servers are equal in the cluster.
All the SQL databases are kept synchronized by the Microsoft SQL Synchronization Service.
Updates from any server are replicated to all other services in the cluster.

D.
One server is designated as the publisher and all others are subscribers.
Database replication for CallManager configuration information can occur from publisher to subscriber or subscriber to publisher depending on where the data are updated.