Which statement concerning the Active/Active failover feature is correct?

A.
ASA Security Appliance failover pair must have either an Unrestricted and UR license or a UR and FO-A/A license to be able to support Active/Active failover.

B.
If an active security context within the primary security appliance “fails”, the status of the primary security appliance unit changes to “failed” while the secondary failover security appliance unit transitions to “active.”

C.
Active/Active failover is supported in “multiple mode” configuration only.

D.
Active/Active failover supports site-to-site IPSec VPN stateful failover.