I think the answer is either B or C!!! hope this helps
Answer:
What helped the U.S. economy was technological progress that lead to the mass production of goods, new mass marketing techniques, the availability of cheap credit, the electrification of America, and increased employment which, in turn, created a huge amount of consumers.
Your answer will be: <u>B. "When Stalin blockaded access to the city of Berlin, the western allies refused to intervene."</u> this is the answer because the western allies <u>DID</u> intervene.
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