Eli Whitney's idea of interchangeable parts resulted in *
The dominance of American manufacturing
O The beginning of the Industrial Revolution?
O Rapid expansion of railroads?
O Mass production of goods?

a is the final : )

b is correct

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monopolies  came to the united states with the colonial administration. the large-scale public works needed to make the new world hospitable to old world immigrants required large companies to carry them out. these companies were granted exclusive contracts for these works by the colonial administrators. even after the american revolution, many of these colonial holdovers still functioned due to the contracts and land

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the main objectives of the progressive movement were eliminating problems caused by industrialization, urbanization, immigration, and political corruption.