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)