When should traffic shaping be implemented on Frame Relay PVCs？（）

• A、When you want to drop excess traffic above the CIR
• B、When there is a speed mismatch between the central site and the remote site
• C、When using Frame Relay SVCs
• D、When over-subscribing the central site link
• E、When LLQ is implemented on the Frame Relay PVC
• F、When Multilink PPP LFI is implemented on the Frame Relay PVC