How is interactive unit authentication enabled on the Cisco VPN 3002?

A.
Interactive unit authentication is checked on the Cisco VPN 3002.

B.
Unit authentication is unchecked on the Cisco VPN 3002.

C.
Unit authentication is unchecked on the Cisco VPN Concentrator and pushed down to the
Cisco VPN 3002.

D.
Interactive unit authentication is checked on the Cisco VPN Concentrator and pushed down to
the Cisco VPN 3002.