Refer to the network of Layer 3 switches in the exhibit. The RPI Multicast Server only
multicasts to hosts connected to multilayer switches 5 and 6. The CMU Multicast Server
multicasts to hosts on multilayer switches 1-6. Given the number of configuration steps
involved, what is the most efficient way to configure the network while meeting the
requirements for multicast data flow?

A.
Configure each switch with PIM sparse mode and a separate instance of PIM dense
mode. Specify switch 1 as the root for the RPI Multicast Server. Specify switch 2 as the root
for the CMU Multicast Server.

B.
Configure each switch with PIM sparse mode and a separate instance of PIM dense
mode. Leave each multicast server as the root of its own multicast tree.

C.
Configure each switch with PIM sparse-dense mode. Configure switch 3 as a rendezvous
point for the RPI multicast stream.

D.
Configure each switch with PIM sparse mode and a separate instance of PIM dense
mode. Allow the switches to elect their own root for each multicast tree.

E.
Configure each switch with PIM sparse mode.

F.
Configure each switch with PIM dense mode.