Final answer:
The default location for Cluster Shared Volumes on a Windows Server is C:\ClusterStorage, which enables simultaneous read and write operations by multiple nodes in a failover cluster.
Therefore, the correct answer is: option a). c:\clusterstorage
Step-by-step explanation:
A Cluster Shared Volume is a shared disk containing an NTFS or ReFS (ReFS: Windows Server 2012 R2 or newer) volume that is made accessible for read and write operations by all nodes within a Windows Server Failover Cluster.
The default location for Cluster Shared Volumes (CSV) in a Windows Server environment is C:\ClusterStorage. CSVs allow multiple nodes in a failover cluster to read and write to the same disk at the same time, which is very useful in a virtualized environment, such as with Hyper-V for virtual machine storage.
After you configure a CSV, it appears on each node in the path C:\ClusterStorage\VolumeX, where 'X' represents a number indicating the particular volume.