You plan to extend the Layer 2 domain by using OTV in multicast mode. What must you consider?
A. The same site ID must be used on all of the edge devices on all of the sites.
B. The join interface must run IGMPv3.
C. The OTV site VLAN must be extended over the overlay.
D. The site OTV VLAN must be the same on all of the AED routers on all of the sites.
