Refer to the Exhibit. 
The df -F ufs -k command on your Solaris system gives the output shown in the exhibit. A backup
of the / (root) file system without bringing the system to single-user mode or unmounting the /
(root) file system is required. Which command will ensure a successful backup of the / (root) file
system to the /dev/rmt/0 tape device, regardless of activity on that file system?
A.
ufsdump -s 0uf /dev/rmt/0 /
B.
ufsdump 0uf /dev/rmt/0 `fssnap -o bs=/opt, raw /`
C.
ufsdump 0uf /dev/rmt/0 `snapfs -o bs=/var/tmp /`
D.
ufsdump 0uf /dev/rmt/0 `snapfs -o bs=/export, raw /`
E.
ufsdump 0uf /dev/rmt/0 `fssnap -o bs=/var/tmp, raw /`
Explanation: