An engineer configures a Cisco ACI Multi-Pod for disaster recovery. Which action should be taken for the new nodes to be discoverable by the existing Cisco APICs?
A. Enable subinterfaces with dot1q tagging on all links between the IPN routers.
B. Configure IGMPv3 on the interfaces of IPN routers that face the Cisco ACI spine.
C. Enable DHCP relay on all links that are connected to Cisco ACI spines on IPN devices.
D. Configure BGP as the underlay protocol in IPN.
C is the correct answer