Exhibit:

/etc/dfs/dfstab file

# Place share(1M) commands here for automatic execution # on entering init state 3.
#
# Issue the command /etc/init.d/nfs.server start to run the NFS # daemon processes and the share commands, after adding the very # first entry to this file.
#
# share [-F fstype] [ -o options] [-d <text>] <pathname> [resource] # .e.g, # share -F nfs -o rw=engineering -d home dirs /export/home2 share -F nfs /usr/share/man
share -F nfs -o ro /export/share
share -F nfs /var/tmp

Which command makes the /export/share resource unavailable for clients to mount, without affecting any other shared resources?

A.
unshareall

B.
share /export/share

C.
umount /export/share

D.
unshare /export/share

E.
unshare -F nfs /export