Watch the video and answer the questions

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The area is considered rural if there are_________ dwellers.
1. Less than 50,000
2. More than 50,000
The majority of American population lives in____
1. In the rural area
2. in the urban area
The rapid migration to the cities started ____
1. In the 19th century
2. In the 18th
3. in the 20 th century