Answer:
The correct answer to the question: which of the following correctly describes and example of how climate affected the settlement of countries in North America, is, B: Most of Canada´s population lives along the southern border, where the weather is warmer.
Explanation:
This particular issue can be seen when inspecting a map of Canada, and you realize that most, if not all, of the big cities, and human habitation, are settled in the southern border of the country, instead of further north, towards Alaska and the colder regions. This is because humans tend to seek warmer and more hospitable climates than those of the cold north. This happened almost from the initiation of habitation in the Americas, more than 10.000 years ago. These migrants from Asia went, as it is currently believed, through the Bering Straight, right at the time of the last glacial period, probably following foodsources and herds of animals, and began descending mostly to southern regions of the continent. Although it cannot be ascertained, aside from looking for food, it is believed that they might also be looking for easier living conditions than the frigid conditions in Asia at the time of the last Ice Age. This is why the likeliest answer is B, because it also reflect´s people´s need to seek warmer climates.