What should the administrator do to achieve the required design?

A system administrator has added a server cluster as a member of a service integration bus (SIB). The administrator needs to configure one messaging engine for each server in this cluster and to have a failover location for each messaging engine.

What should the administrator do to achieve the required design?
A . Configure a new messaging engine in each server to support failover.
B . Configure the data store for each messaging engine for each server in the cluster.
C . Select scalability with high availability as the messaging engine policy.
D . Create a core group policy to restrict each messaging engine to a particular server.

Answer: C

Explanation:

The scalability with high availability configuration ensures that there is a messaging engine for each server in a cluster, and that each messaging engine has a failover location.

http://www-01.ibm.com/support/knowledgecenter/SSCKBL_8.5.5/com.ibm.websphere.nd.doc/ae/cjt1004_.html (second paragraph)