Preserving the penny keeps consumer prices down and avoids harming low-income households. A penny can be used for decades and is more cost-efficient to produce than a nickel. The existence of pennies helps raise a lot of money for charities.
Answer:
the railroads were not only the main means of transportation of there time but they were also used to haul goods from one side if the country to the other!
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The best answer would be D.
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