They took a bad bad aproch because they are so mean
I’m sorry? I think your question got cut off...
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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He Mexican Revolution<span> was brought on by, among other factors, tremendous disagreement among the </span>Mexican<span> people over the dictatorship of President Porfirio Díaz , who, all told, stayed in office for thirty one years.</span>
