Which of the following correctly describes an example of how climate affected the settlement of countries in North America?

Most people in the United States settled in the middle of the country, where temperatures are less extreme.
Most of Canada’s population lives along the southern border of the country, where the weather is warmer.
Most of Mexico’s population that migrated to the United States did so to avoid hot summers.
Most of the people in countries on this continent live in either tropical or subtropical regions.