What type of supporting material would be most effective for revealing patterns of opinion? 

Any creative attention-getter is effective, even if it has no real relation to the topic of the speech

Indicate whether the statement is true or false

Charlene was presenting onthe evolution of the internal combustion engine to a group of undergrads. During the presentation, she noticed a large number of the students seemed extremely bored

Because of this, Charlene called directly on some of the students, asked their opinions, and also started introducing anecdotes into her speech.Lastly, she decided to do away withtheplanned discussion pertaining to various statistics and details about the engines. What type of presentation did Charlene deliver? a. Audience-centered b. Team-centered c. Message-centered d. Speaker-centered