What are you asking here?
Answer:
D. all of the above are correct
Explanation:
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. NATO was the first peacetime military alliance the United States entered into outside of the Western Hemisphere.
It could be argued that the most significant consequence of the Russian Revolution of 1917 was that "<span>A. The Bolsheviks under Lenin seized power and instituted a Communist government that lasted more than seventy years," since this was ultimately the basis for the Cold War that existed between the USSR and the US. </span>
The answer is either Ethnic, or social. I'm not too sure, but I'm leaning towards Ethnic. Hope I could help!