What is the behavior of content filtering policies, when the Blue Coat WebFilter license expires?

A.
All content is blocked

B.
All content is allowed

C.
Content is allowed or blocked depending on policy for System/unlicensed

D.
Content is allowed or blocked depending on fail open or fail closed setting in Management
Console.

Explanation:
http://forums.bluecoat.com/viewtopic.php?f=2&t=4290