A customer wants to implement a policy on a guest WLAN, in which clients must accept the company wireless policy and enter an email address to access the guest network. The company does not have access to RADIUS servers and wants the WLAN to use open Layer 2 security. Which Layer 3 security web policy must be enabled to meet these criteria?

A.	authentication
B.	web authorization on MAC filter failure
C.	conditional web redirect
D.	web pass-through