The answer is B, moral duty of the west to work to "civilize" the rest of the world.
state laws and customs upheld the constitutional amendments
<span>The role of Monroe Doctrine in the history of the United States of America. ... and for the Western Hemisphere had been launched before Monroe's address to ... In July, 1823, Adams made hisconcerns known to Russian minister in Washington. .... we have never taken any part, nor does it comport with our policy so to do.</span><span>
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At specific points in historical time periods, African Americans were seen merely as work objects. African Americans were seen as 3/4th of a person, a little more a little less. These ideald were not extended to them for others believed they were not "humans" and other unsatisfying terms.
What the three cases have in common is that they were all victories for the people and their amendment guaranteed rights against states who wanted to obstruct those. The first case was about preventing states from limiting freedom of speech, the second was about preventing illegally obtained evidence from being used in court, and the third was that the states have an obligation to provide a lawyer to criminals if they can't pay for them.
