Which two actions are needed to configure a single Cisco APIC controller for Cisco ACI fabric for the first time? (Choose two.)
A. Register the APIC that is connected to the switch.
B. Configure the first Cisco APIC controller
C. Configure the leaf switch where the Cisco APIC is connected, using CLI to allow APIC connectivity
D. Register the switches that are discovered through LLDP.
E. Register all leaf and spine switches
