The Happy Medium saw the light by the Black Thing overcoming it.
The best way to emphasize an element you added in the slides using body language is to point directly to the screen.
<h3>What does it mean to emphasize?</h3>
It means to give special attention to one element you would like your audience to remember
<h3>How do you emphasize an element in the slides?</h3>
If you want to use body language, the best way would be to point out directly to the element you want to emphasize. In this way, you make sure the audience sees it and remembers it.
Learn more about emphasize in: brainly.com/question/22842824
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It is logical to me to assume that it is all of the above.