You need to backup the /data file system while the file system is active

The current ZFS configuration on server is:

You need to backup the /data file system while the file system is active.
Select the option that creates a full backup of the /data file system and stores the backup on
server in the pool named backup.

A.
Mount-F nfs system: /backup / mnt
zfs snapshot pool/data@monday>/mnt/Monday

B.
Mount-F nfs systemB: /backup/mnt
zfs snapshot pool1/data@Monday
zfs clone pool1/data@monday/mnt/Monday

C.
Zfs send pool1/data@Monday | ssh system zfs recv backup/monday

D.
Zfs snapshot pool1/data@Monday | ssh system zfs recv backup/monday

Explanation:
Example (assuming there exists a snapshot tank/test@1).
Full backup
Now lets do a full initial backup from the tank/test@1 snapshot:
# zfs send tank/test@1 | zfs receive tank/testback