【单选题】
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.<br /> 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.
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