How do you specify that pool1/data should not contain duplicate data blocks (redundant data) on write operations?

In an effort to reduce storage space on your server, you would like to eliminate duplicate copies of
data in your servers ZFS file systems.
How do you specify that pool1/data should not contain duplicate data blocks (redundant data) on
write operations?

A.
zfs create-ocompression=on pool1/data

B.
zpool create -odeduplication =on pool1; zfs create pool1/data

C.
zfs create-odeduplication=on pool1; zfs create pool1/data

D.
zfs create-odedupratio=2 pool1/data

E.
zfs create-odedup=on pool1/data

Explanation:
ZFS Deduplication Property
Solaris Express Community Edition, build 129: In this Solaris release, you can use the
deduplication property to remove redundant data from your ZFS file systems. If a file system has
the dedup property enabled, duplicate data blocks are removed synchronously. The result is that
only unique data is stored and common components are shared between files.
You can enable this property as follows:
# zfs set dedup=on tank/home