Due to regulatory requirements, a college bookstore prohibits customers from accessing the wireless network in the building. Which of the following would be the BEST method to prevent customers from accessing the wireless network while in the bookstore? 

Answer options:

A. Use MAC filtering for authorization to the wireless network.
B. Require PEAP for authentication to the wireless network.
C. Implement a Faraday cage within the bookstore premises.
D. Require a pre-shared key for authentication to the wireless network.

C