At a polite roast of a colleague, a speaker delivered a scathingly insulting description of the roastee. What guideline did the presenter violate? 

Speaking to the whole audience and not segmenting them is an important part of engaged public speaking.

Answer the following statement true (T) or false (F)

An important point to remember about diversity is that

A. it is very frustrating. B. it makes it almost impossible to work together in groups. C. you can't expect other group members to change their needs, styles, or cultures to match yours. D. people are not that much different after all. E. it is the source of all tension and conflict in small groups.