ProxySG Uses a Licensed Blue Coat Web Filter (BCWF), and Has

ProxySG uses a licensed Blue Coat Web Filter (BCWF) , and has configured policies for URL categories. ProxySG uses a DNS server, which for some reason cannot resolve the domain name sp.cwfservice.net anymore. What happens to the content filtering policy evaluation in this case?

A) Any time when policy evaluation needs to categorize an URL, access to that page is denied.
B) ProxySG always uses whatever action is configured for the System/unavailable category
C) Policy evaluation is not affected, because ProxySG uses the default IP address of a WebPulse Service Point
D) Policy evaluation is not affected for URLs categorized in the BCWF database, and is evaluated as System/unavailable for any other URLS.