An administrator changed an NFS mount point to read/write capability by adding the -rw option in /etc/exports. Clients are still unable to write to the Network File System. How can this be resolved?
A. Run the exportfs -a command on the NFS server.
B. Issue the refresh -g nfs command on the NFS server.
C. Unmount and mount the NFS file system on the NFS server.
D. Use the mount -o rw command on the NFS filesystem on the NFS server.