Answer:
If there was a graph, it would be more helpful, but I believe the answer would be A. If you could provide the graph, I would correct myself if I am mistaken.
<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>
Answer:
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Explanation:
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