What Is the Task of the Cluster Logical Volume Manager

Multiple Choice

What is the task of the Cluster Logical Volume Manager, CLVM?

A) It segments the cluster nodes into several logical groups that are always fenced together.
B) It balances incoming TCP connections to a logical service to several backend nodes.
C) It makes logical volumes on shared storage available to all cluster nodes.
D) It allows several nodes to share file system locks in order to access the same files simultaneously.