Which two requirements must be considered in this design?

A Solutions Architect is asked to design two data centers based on Cisco ACI technology that can extend L2/L3, VXLAN, and network policy across locations. ACI Multi-Pod has been selected.

Which two requirements must be considered in this design? (Choose two.)
A . ACI underlay protocols, i.e. COOP, IS-IS and MP-BGP, spans across pods. Create QoS policies to make sure those protocols have higher priority.
B . A single APIC Cluster is required in a Multi-Pod design. It is important to place the APIC Controllers in different locations in order to maximize redundancy and reliability.
C . ACI Multi-Pod requires an IP Network supporting PIM-Bidir.
D . ACI Multi-Pod does not support Firewall Clusters across Pods. Firewall Clusters should always be local.
E . Multi-Pod requires multiple APIC Controller Clusters, one per pod. Make sure those clusters can communicate to each other through a highly available connection.

Answer: A,C