You want to backup an active ZFS file system named dbase. When listing the information on the file system, the following information is displayed:
NAME USED AVAIL REFER MOUNTPOINT
data/dbase 24.5K 72.8G 24.5K /data/dbase
Rather than unmount the file system and make it unavailable during the backup, you want to create a point in time snapshot of the file system and backup that snapshot.
Which command is used to create a point in time snapshot of the dbase file system?

A.
zfs snapshot files/data data_snapshot

B.
zfs snapshot data/dbase@ dbase_snapshot

C.
zfs clone data/dbase data/sdbase/dbase_snapshot

D.
fssnap -F ufs -o bs=/var/tmp /data/dbase /dev/fssnap/0 /data to mount the file system.

E.
zfs unmount /data -to unmount the file system; zfs mount /data to mount the file system.