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

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.