You are charged with implementing a secure wireless installation which will provide internet 
access to client devices but will not allow communications between wireless clients.
In addition to implementing pspf or peer-to-peer blocking on the wireless side，which of the following actions should you perform on the wired infrastructure？（）

A.implement a cisco secure ips sensor.
B.implement 802.1x on the switch ports.
C.take no action， you have achieved your goal.
D.implement a protected port on the access switches.