The Emancipation Proclamation made a promise: it promised that the United States was committed to ending slavery once and for all. It promised African Americans in the South that under no circumstances would they be returned to slavery if the United States won the war. (Hope this helps!)
A guarantee against European intervention was stated in the Monroe Doctrine. The correct option among all the options that are given in the question is the second option or option "b". This United states policy was made by President James Monroe. It stated that any kind of intervention by European countries against North or South america would be viewed as an act of war.
The difference between the beliefs of the nation of Islam and that of the Christian conference was that : The Nation of Islam used any means necessary to achieve equality.
<h3>What was the nation of Islam?</h3>
This was a religious group that existed during the era of segregation and racial discrimination in the United States.
This group was known to have tried to use the harsh approach to achieve equality. Most of their teachings were seen as extreme.
Read more on the nation of Islam here:
brainly.com/question/4055779
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Gorge Washington warned that political parties would lead to a dangerous division within the United States--which he believed would make the US vulnerable to disputes and foreign attacks. He ultimately thought that political parties would weaken the nation.