Users at the Charleville Company began experiencing high network delays when Internetconnectivity was enabled for all users. After investigating the traffic flow， you determine that peer-to-peer traffic from a music download site is consuming a large amount of bandwidth. Which QoSmechanism can you implement to improve the network response time？（）

• A、 Use CBWFQ to queue the peer-to-peer traffic into the default traffic class.
• B、 Use class-based WRED to randomly drop the peer-to-peer traffic during network congestions. 
• C、 Use class-based policing to limit the peer-to-peer traffic rate.
• D、 Use class-based shaping to delay any excessive peer-to-peer traffic.