Which two Cisco ASA licensing features are correct with Cisco ASA Software Version 8.3 and later? (Choose two.)

A.
Identical licenses are not required on the primary and secondary Cisco ASA appliance.

B.
Cisco ASA appliances configured as failover pairs disregard the time-based activation keys.

C.
Time-based licenses are stackable in duration but not in capacity.

D.
A time-based license completely overrides the permanent license, ignoring all permanently licensed features until the time-based license is uninstalled.

Explanation:
http://www.cisco.com/en/US/prod/collateral/vpndevc/ps6032/ps6094/ps6120/product_bulletin_c 25-593781.html
Time-based license stacking: Customers can extend time-based licenses such as Botnet Traffic Filter and SSL VPN Burst by applying multiple licenses. Licensing
of high-availability pairs: For several features, the requirement to deploy identical licenses on the standby unit in a high-availability pair has been removed. Security

Plus licenses must still be purchased for both the Active and Standby units.