You are setting up an ACI spine-leaf architecture and interconnecting the spine switches with the leaf switches. Which description of what happens after initial setup to activate these interlinks is true? 

Answer options:

A. An overlay is created automatically, which creates a setup where the uplinks do not need to be managed manually.
B. The links are creating a Layer 3 network, and all links must be configured as point-to-point links.
C. The interlinks are Layer 2 connections and only the allowed VLAN list must be added.
D. Fabric Path must be configured on the interlinks.

A