How does FabricPath build loop-free topologies for multidestination traffic? 

Answer options:

A. FabricPath uses forwarding tags to ensure a loop-free topology.
B. FabricPath uses multicast groups to encapsulate Ethernet traffic in IP multicast packet.
C. FabricPath cannot have loops and does not need to rely on any logic to prevent them.
D. FabricPath uses spanning-tree inside the FabricPath network to prevent loops.

A