Which statement is correct regarding using the TTL threshold to define the delivery boundaries of multicast traffic?

Which statement is correct regarding using the TTL threshold to define the delivery boundaries of multicast traffic?
A . If a packet TTL is less than the specified TTL threshold, the packet is forwarded out of the interface
B . If a packet TTL is greater or equal to the specified TTL threshold, the packet is forwarded out of the interface
C . If a packet TTL is equal to the specified TTL threshold, the packet is dropped
D . When a multicast packet arrives, the TTL threshold value is decremented by 1. If the resulting
TTL threshold value is greater than or equal to 0, the packet is dropped

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Answer: B