Which characteristic of distributed class-based weighted fair queueing addresses jitter prevention?

Which characteristic of distributed class-based weighted fair queueing addresses jitter prevention?
A . lt provides additional granularity by allowing a user to create classes
B . It minimizes jitter by implementing a priority queue for voice traffic
C . It uses a priority queue for voice traffic to avoid jitter
D . It provides additional granularity by allowing a user to define custom classes

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Answer: B