The megaphone makes her voice louder in one direction, increases the amplitude of spreading sound waves.
Megaphone is a Spotify-owned podcast technology company that specializes in ad insertion and hosting.
While the distance between from the crest of a wave to the next crest is known as the amplitude.
The megaphone makes her voice louder in one direction, increases the amplitude of spreading sound waves.
Hence, option B is correct.
To learn more about the megaphone, refer to the link;
https://brainly.com/question/16849221
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