What is one Important security action that the wireless solution supports to comply with PCI DSS?

A retailer wants to add a wireless network to its stores to provide guest access. The store has wired POS systems which the customer will now replace with wireless systems.

What is one Important security action that the wireless solution supports to comply with PCI DSS?
A . Use test-practice, factory default settings for security settings and login credentials.
B . Implement TKIP encryption on the wireless network used by POS devices.
C . Impose mandatory clean up periods to delete records of user access to controllers
D . Enforce role-based access control on administrators who access controllers

Answer: A