问题：

[单选]

Your company has Active Directory Certificate Services (AD CS) and Network Access Protection (NAP) deployed on the network.You need to ensure that NAP policies are enforced on portable computers that use a wireless connection to access the network. 
What should you do?（）

A . Configure all access points to use 802.1X authentication.
B . Configure all portable computers to use MS-CHAP v2 authentication.
C . Use the Group Policy Management Console to access the wireless Group Policy settings, and enable the Prevent connections to ad-hoc networks option.
D . Use the Group Policy Management Console to access the wireless Group Policy settings, and disable the Prevent connections to infrastructure networks option.