All are recommendations for effective and engaging presentations EXCEPT for:

Which of the following is unique to the working outline for a

persuasive speech? a. Each point contains only one key idea. b. Main points may be formulated as questions. c. Main points must relate back to the central idea. d. The general purpose is "to persuade."

The changes in the patterns of immigration during the last 40 years illustrate the fact that the population of the United States is becoming much more ________.

A. nativist B. ethical C. classist D. heterogeneous