Answer:
The correct answer is - B. The increase in immigrants from Europe.
Explanation:
The American party or the Know-Nothing Party was formed against the policies of Jackson, it was an anti-Catholic, anti-immigrant movement against the immigrants.
These native-born Americans thought that they were superior to immigrants coming from outside of America especially from Europe and wanted to limit immigration or ban their rights to vote and other rights. The goal of this movement was to fight immigrant and catholic influences and promote traditional American culture.
<span>League of Nations,Rhineland, appeasement</span>
This is more of an opinion question, but I think it revealed that he was not willing to give up, and he would kill them if he had to.