The second Klan arose in 1920 with a broader agenda because anti-black racism was not an adequate motivator in the North, where few African Americans lived at the time, it targeted Catholics, Jews, and in the West, Japanese and Mexican Americans.
I believe the answer is B) personal history
The Palmer Raids were government raids that were against suspected radicals that were in the United States, these raids were very successful and were illegal. The Palmer Raids were abusive and went against the Constitution and jailed many innocent people without say, which the ACLU ended up deeming many of their actions such as the abuse and jailing illegal. After the Palmer Raids, Mitchell Palmer, who came up with the idea, was completely dishonored.
