Which of these can not be used in defining policies？（）

A. the proxy blocked an outbound request because the client is infected with malware
B. the proxy blocked access to a site with a low reputation score
C. the proxy blocked access to a site because of a suspicious server response
D. your appliance or the WBRS key is out of support

A.if enabled， all HTTPS traffic must be decrypted
B.if WBRS is enabled， it can be used to determine whether the HTTPS traffic is to be decrypted
C.decrypted HTTPS traffic is sent unencrypted across the enterprise intranet
D.object size can be used to determine whether the HTTPS traffic is to be decrypted

A.the DVS engine can useWebroot and McAfee scanning in parallel
B.the DVS engine generates the WBRS
C.the DVS engine never inspects the client HTTP request
D.the DVS engine is only used for Layer 4 traffic monitoring