How would a person giving a persuasive speech use projection to make a key point? The answer is B) by using a louder voice. Just took the test on Edg2020

by using a louder voice

Explanation:

When it comes to giving a persuasive speech, it is very important that the speaker uses a "louder voice" especially when it comes to projecting his voice to make a key point. This will get the listeners' attention and interest and will allow those sitting at the far end hear the speaker.

When a speaker speaks in the same volume, the listeners have the tendency to get bored over time. Thus, it is very important to make the voice louder when emphasizing key points. This sound is powerful enough to let the audience know what you're trying to convey.

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