Answer:B
Explanation: I think it's right
City planners adopted railroad technology in the Industrial Age to help out commuters. Since a lot of factories were not located close to homes, people took the train to get to work as their way of transportation.
Since the extraordinary economic revolution that took place in North America in the final decades of the nineteenth century and the first of the twentieth century, various measures have been applied in the United States, which we rightly call populists. These have, in general, had a wide acceptance of the population, but - and this is very important - their results have not always been good. And, in some cases, they have had very damaging effects.
Columbus did not have a respectful opinion of the Americans, and he only cared about finding riches. He did not view the American Indians as a threat, so he treated them badly.
<em>Answer ~</em>
<u>A) They needed many people to work on their plantations.
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<u>C)They turned to Africans after West Indies natives died in large numbers.
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