Answer: B is correct.
Explanation: there were many who wanted to follow isolationism arguing that the war was problem of Europeans, there were also those (many Americans were of European origin with their roots in different corners of the Old continent). Situation changed and USA (country of European origin and roots) entered the war and continued engaged in (especially) European security policy.
It’s was good for the United States
Answer:
an period of high-stakes tension between russia and us
Explanation:
*** nuclear arms race--> they both attempted to gather as many nuclear weapons as possible to act like a threat to the other
the cw was a period of geopolitical tension between the su and the us and their respective allies, the 'Eastern Bloc and the Western Bloc', after WW II.
--> the period is generally considered to span the 1947 Truman Doctrine to the 1991 dissolution of the su.