Which description is true about a server load balancing design in which traffic must first be load- balanced through firewalls?

Which description is true about a server load balancing design in which traffic must first be load- balanced through firewalls?

A.
Both internal and external Cisco ACE appliances must use the same VIP.

B.
A unique VIP must be assigned to both the internal and external Cisco ACE appliances.

C.
The firewalls must be in the same subnet as theRservers.

D.
The firewalls require a special policy that will prevent them from changing the forwarding MAC address.