The IT Management Team at an Organization Has Just Created

The IT management team at an organization has just created a new policy that requires guests to be given authentication credentials through a sponsoring process in order to join the wireless network. Which of the following is most likely to be chosen as the solution to implement this new policy?

A) Authenticate all wireless network users by using 802.1x backed by a RADIUS server.
B) Require the use of 802.3af across the entire wireless network.
C) Configure 802.3a for the wireless network backed by XTACACS.
D) Authenticate all wireless network users by using 802.3at backed by TACACS+.