Answer:
In a speech to Congress in 1823, President James Monroe warned European powers not to attempt further colonization or otherwise interfere in the Western Hemisphere, stating that the United States would view any such interference as a potentially hostile act. Later known as the Monroe Doctrine, this policy principle would become a cornerstone of U.S. diplomacy for generations.
Explanation:
Answer:
The Know-Nothing was made of wasps(White anglo-saxon ... In 1850 there was a very high wave of immigration from Ireland(due to the famine)
I believe it is B) They thought democracy was being spread around the world