The best and most correct answer among the choices provided by your question is the second choice which is "railroad tracks."
<span>By 1860 the Midwest and the East were united by a network of railroad tracks.</span>
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The New Life Movement (Chinese: 新生活運動; pinyin: Xīn Shēnghuó yùndòng) was a government-led civic movement in 1930s China to promote cultural reform and Neo-Confucian social morality and to ultimately unite China under a centralised ideology following the emergence of ideological challenges to the status quo.
Answer:
The stock market crashed In 1930
Explanation:
Which lead to the great American depression which lead to banks being shut down
Answer: There's less money in circulation; there are plenty of goods but no demand so prices drop.