A security review focused on data loss prevention (DLP) revealed the organization has no visibility to data stored in the cloud. What is the IS auditor`s BEST recommendation to address this issue? 

Answer options:

A. Implement a file system scanner to discover data stored in the cloud.
B. Utilize a DLP tool on desktops to monitor user activities.
C. Employ a cloud access security broker (CASB).
D. Enhance the firewall at the network perimeter.

C