Which of the following statements about ISIS MT are correct?
a. An independent routing table can be created for IPv6, multicast, and advanced topologies to solve the problem that packet loss occurs in the dual protocol stack and multicast services depend on unicast in the integrated topology.
b. MT ID is used to identify the topology bound to an interface. Each interface can have one or more MT ID.
c. On a point-to-point link, if there is no common MT ID between two neighbors, the two neighbors still form an adjacency relationship.
d. On a broadcast link, neighbor relationships are still established even if there is no MT ID between neighbors.
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