In a transparent proxy that is intercepting HTTP, how can an administrator allow instant
messaging over HTTP to pass through ProxySG if they do not have IM license on the ProxySG?

A.
By disabling Detect Protocol
B.
By disabling Protocol Handoff in IM
C.
By configuring the proxy services to bypass AOL IM, MSN IM and Yahoo IM services
D.
By disabling early intercept
B
I have the same idea. B