How does audio add information to a presentation?

Question

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It allows the author to see the person's facial expressions and the camera angle.
It allows the reader to see only the words that were intentionally chosen by the author to convey their ideas.
It allows the reader to hear the emotion of the presenter. It shows the tone of the author and creates a mood for the listener..
Audio does not add information to a presentation.

Answer 1

It enhances the information already present by adding a layer of emotion and atmosphere. It can also help to emphasize certain points and create a more engaging experience for the audience.