Under which condition will the command mount /mnt cause an NFS client to mount a resource from an NFS server?

A.
When there is an appropriate /mnt entry in the clients /etc/vfstab file.
B.
When there is an appropriate /mnt entry in the servers /etc/vfstab file.
C.
When there is an appropriate /mnt entry in the clients /etc/dfs/dfstab file.
D.
When there is an appropriate /mnt entry in the servers /etc/dfs/dfstab file.