Answer:
Manifest destiny is a belief that many people in America at that time held. This belief made them convinced that they're somehow destined by God to spread democracy and capitalism to the rest of North America. The people at that time belief that it's the only correct system to ensure the freedom of all citizens.
But due to the large size of its territory, it is difficult to reach many different areas in north America. Railroad companies already exists. But, most of them only operates within one state. This problem was somehow solved by the creation of Transcontinental Railroad.
The transcontinental railroad was built with the intention to create a pathway connect all part of North America. It is an important infrastructure for the American people to create settlements in every corner of the country. This helped them spread the ideologies as intended in Manifest Destiny.
From what I remember is that it they had purchased it from France. SO the answer is B.
Many early political structures were governed by hereditary and patriarchal rulers. This was actual the main problem that were faced by the people during the early years. The rulers were never chosen on merit and hence some of the civilizations lost the glory that their previous generations created. Due to this fact the United States of America slowly moved away from this strategy and went for the merit based selection.
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