Using a faster rate of speech to create excitement or a slower rate of speech to convey seriousness is an example of which technique for encouraging effective listening?

- Cue your listeners.

Explanation:

As per the question, the technique that has been employed here 'cue your listeners' as it signals or hints the readers about the author's purpose and nature of the content. These cues help the speaker to provide an indication to the readers about his specific intent for creation of a particular work and leads the readers to elicit desired response. The 'faster rate of speech' function as a cue/hint to develop excitement while 'a slower rate' indicates that the tone is 'serious' and the speaker intends to convey something serious and significant.

c, his tragic flaw to cause his downfall

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