Your answer would be A - The fertility rate is low.
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The purchase of Alaska in 1867 marked the end of Russian efforts to expand trade and settlements to the Pacific coast of North America, and became an important step in the United States rise as a great power in the Asia-Pacific region.
The North Atlantic Treaty Organization was created in 1949 by the United States, Canada, and several Western European nations to provide collective security against the Soviet Union. ... After the destruction of the Second World War, the nations of Europe struggled to rebuild their economies and ensure their security.
Money, resources, soldiers, allies
