What is an efficient and practical step that Lynne can take to decrease the likelihood of active attacks on her customers' wireless computers?

What is an efficient and practical step that Lynne can take to decrease the likelihood of active attacks on her customers’ wireless computers?

Lynne runs a small hotel, and as a value added service for her customers she has implemented a Wi-Fi hot-spot. Lynne has read news articles about how hackers wait at hot-spots trying to take advantage of unsuspecting users. She wants to avoid this problem at her hotel.

What is an efficient and practical step that Lynne can take to decrease the likelihood of active attacks on her customers’ wireless computers?
A . Implement Network Access Control (NAC) and require antivirus and firewall software along with OS patches.
B . Require EAP-FAST authentication and provide customers with a username/password on their receipt.
C . Implement an SSL VPN in the WLAN controller that initiates after HTTPS login.
D . Enable station-to-station traffic blocking by the access points in the hotel.

Answer: D