you need to do?

You have set up a new wireless network for one of your prestigious clients.
The director wants to ensure that only certain designated wireless laptops can connect to the new network to
prevent misuse.
What do you need to do?

A.
Use MAC address control

B.
Use IPv4 address control

C.
Use WEP

D.
Use WPA

Explanation:
http://www.belkin.com/PYRAMID/AdvancedInfo/F5D7633uk4A/Interfaces/UI2/English/wireless_mac_ctrl.html\\