In order to enable load balancing across WAE interfaces, which WAE deployment model should be used to configure PortChannels on the core WAE appliances?

In order to enable load balancing across WAE interfaces, which WAE deployment model should be used to configure PortChannels on the core WAE appliances?

A.
one-router, one-arm

B.
on-router, two-arm

C.
off-router, one-arm

D.
off-router, two-arm