What Happens If the Identity of a User Is Known

What happens if the identity of a user is known?

A) If the user credentials do not match an Access Role, the system displays the Captive Portal.
B) If the user credentials do not match an Access Role, the system displays a sandbox.
C) If the user credentials do not match an Access Role, the traffic is automatically dropped.
D) If the user credentials match an Access Role, the rule is applied and traffic is accepted or dropped based on the defined action.