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The intended audience is all citizens of Westport County, as seen by the first sentence of the third paragraph.
It shows that there are more sources for the reader to read, and it also is strong supporting evidence for the main idea.
Answer:
3. complex sounds, such as noises and voices, to pure tones
Explanation:
Newborns and babies are extremely sensitive to sounds like noises and voices, and are able to distinguish sound patterns as well as any sound of any language they are exposed to. Besides, in their first months, babies are able to perceive tempo and rhythm, and they can also identify musical tunes before their first year.