You are charged with implementing a secure wireless installation which will provide Internet accessto 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.