Final answer:
In NFS, each client accesses the same copy of files on the server, enabling multiple clients to share data as if it were on a local storage resource.
Step-by-step explanation:
The Network File System (NFS) allows multiple clients to access the same files and folders on a server. The correct answer to the question in the NFS context is b. Each NFS client has access to the same copy of the files on the NFS server. Instead of each client having its private copy, all clients access and potentially modify the same files. NFS operates over a network to allow multiple clients to interact with the data concurrently. This system is designed to provide a consistent and unified view of the files to all clients, as if they were accessing a local storage resource.