<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be the "railroad," since rail travel allowed for people and supplies to move to the west at an unprecedented pace. </span></span>
I would be happy to help if given more than information
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I think the answer is Mexicans and Germans
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they raised goats and sheep because they could climb the mountains. they Also planted crops and took over other lands so they could develop the land