Which statement is true about ASIS deduplication license with Data ONTAP 8.1?

A.
The existing 8.0 license key is used.

B.
A new license key is generated.

C.
The license is capacity-based.

D.
The license no longer exists.

Explanation:
https://library.netapp.com/ecmdocs/ECMP1120690/html/frameset.html
Changes to deduplication in 8.1 7-mode
Starting with Data ONTAP 8.1, you can enable the deduplication feature without adding a license.
For
deduplication, no limit is imposed on the supported maximum volume size. The maximum volume
sizelimit isdetermined by the type of storage system regardless of whether deduplication is
enabled.