In order to fulfill the requirement to prevent the creation of end-to-end loops across a multihomed OTV network that connects two different data centers, what is the solution to this problem?
A. prioritize the transmission of STP BPDUs across the overlay
B. design the DCI connectivity as a hub and spoke
C. define a conservative TTL for all packets traversing the OTV network
D. enable AED on a per-VLAN basis between each OTV edge device with the same site ID