Acquiring responsible knowledge of your subject requires that a speaker works from up-to-date information

A good introduction does which of the following?

a. Captures the audience's attention and motivates them to listen b. Presents a clear thesis statement c. Enhances the speaker's credibility and provides a clear preview of points d. All of these

A student browses through the new nonfiction at a library and bookstore, then makes a list of subjects that audiences may consider important. What is she using to find a speech topic?

a. news items b. surveys c. topic generators d. topoi