The answer to this question is false
<span>A major criticism directed against the articles of confederation was that power was allocated primarily to "the states" as opposed to the central government, which made the US very weak--both socially and economically. </span>
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During the first part of the 19th century, it was mainly "<span>C. the railroad and the telegraph" that</span> revolutionized transportation and communication, since these greatly increased efficiency and speed.