Which three options are true with regard to the Cisco Security MARS global and local controller architecture?

Which three options are true with regard to the Cisco Security MARS global and local controller architecture? (Choose three.)

A.
All local controllers events are propagated to the global controller for correlations.

B.
One global controller can support multiple local controllers.

C.
Each zone can have one local controller.

D.
Incidents can be viewed on the global controller based on a selected local controller.