The teen-aged hacker who broke Hollywood's anti-copying protection on commercial DVDs and allowed worldwide ripping and file-sharing of movies was

In a speech, a slightly faster rate of speech is most likely to

A. convey the speaker's lack of mastery of the topic. B. give the audience more time to daydream. C. enhance the speaker's credibility. D. direct the audience's attention to the next key idea.

What is NOT a guideline for writing an effective central idea?

a. Consider what your audience will need or want to know. b. Preview what your speech will include. c. Use a complete sentence. d. Write it in the form of a question.