Under what circumstances&#

Under what circumstances should an administrator prefer local VLANs over end-to-end VLANs？（）

• AEighty percent of traffic on the network is destined for Internet sites.
• BThere are common sets of traffic filtering requirements for workgroups located in multiple  buildings.
• CEighty percent of a workgroup’s traffic is to the workgroup’s own local server.
• DUsers are grouped into VLANs independent of physical location.
• ENone of the other alternatives apply