5. The United States wanted to acquire the Mexican Cession to B. complete the transcontinental railroad across the Southern United States.
However, it is important to note that this is also part of the Manifest Destiny. However, in this case, the more accurate answer is B, as the Gadsden purchase was used to create a easier route for the railroads to get laid (as the area surrounding were mountainous). However, it also played an important role in the Manifest Destiny, as it continued the policy of continuing to expand westward (though south west).
6. I believe it is A. Factors of the Creation of the Monroe Doctrine., especially in the long run.
The Monroe Doctrine was created during the presidency of James Monroe, who was office from 1817 - 1825. You must remember that the Louisiana Territory was under French rule, Florida, and south-western parts of the United States was under Spanish rule, and other European countries claiming smaller territories within the current US. However, with the purchase of the Louisiana Purchase as well as the Gadsden Purchase and the Acquisition from both the Texas Independence (in which Texas joins the Union), and the Mexican-American War, the US gained large amounts of territory at once, as well as large amounts of population. The Monroe Doctrine was an ultimatum to European countries, in which the US was the regional power, and that it would use it's resources to "protect" it's neighbors and it's own interests. In this case, the European countries were not to interfere with territories in the US, creating the U.S. sphere of influence. However, existing colonial powers were not removed by the U.S.
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The correct answer is to protect domestic businesses.
When the US government puts a tax on an imported good (aka a tariff) they are trying to protect American businesses. The US government, when it passes tariffs, believe that the increased price of foreign goods with result in citizens buying goods from American made companies, as they will be similar in price or cheaper. This strategy has been used by the United States since the early 1800's and continues to be used as a means of protecting American businesses.
However, the succeess of these types of tariffs are mixed, as this usually results in a decrease in trade and an overall increase in price for consumer goods.
D, unemployment would have to rise so by process of elimination A and D are left. You can limit out A because less employment means less cash flow!
It seems that you missed the given choices of the question posted, but anyway, here is the correct answer. The correct answer for the given question above would be SEPARATION OF POWER. The principle of government that is presented by the U.S Constitution in Montesquieu describing is the separation of power. Hope this answer helps.