Please describe how does LLQ help ensure that voice quality is maintained in a converged network?

You are CCNA VOICE associate in Certkey.com. Please describe how does LLQ help ensure that voice quality is maintained in a converged network?

A.
The Low Latency Queueing feature allocates minimum bandwidth guaranteed to voice traffic.

B.
The Low Latency Queueing feature allocates a priority queue to voice traffic at a guaranteed rate

C.
The Low Latency Queueing feature allocates a priority queue and a minimum guaranteed bandwidth queue for voice.

D.
The Low Latency Queueing feature ensures that all traffic is treated fairly and hence voice traffic is not severely impacted.