Briefing Blue Coat Knowledge

Which of the following policies can be applied to Instant Messaging traffic?

Which of the following policies can be applied to Instant Messaging traffic? (Choose all that apply)
(a) A policy to deny the transfer of specific file types or file sizes
(b) A policy to deny a specific IM request method
(c) A policy to deny a key word or words using a regular expression
(d) A policy to deny a specific IM buddy or IM chat room

A.
a, b & c only

B.
b, c & d only

C.
a, c & d only

D.
All of the above

Explanation:
http://download.cacheflow.com/manuals/SGOS3/ProxySG_CMG_Guide_3.1.4.pdf(pag
e 438, 439, 440, 441)