Parallel teams produce one-time outputs and are time-limited

Pedro wants to bring a theater-style popcorn maker into the room as a presentation aid for his speech on movie theaters, but in rehearsals he discovers that his voice cannot be heard over the sound of popping. Which of the following conclusions should Pedro draw from his rehearsal experience?

A. This presentation aid, though impressive, is not worth the trouble. B. The popcorn smell will be something the audience never forgets. C. He should postpone his speech until a quieter popcorn machine is invented. D. Nobody minds if they can't hear the speech, so long as there is popcorn.

Explain what a speaker can do to enhance initial credibility, derived credibility, and terminal credibility.

What will be an ideal response?