d. impeachment is the answer you want
The answers are economic, Political, and natural disasters
The artist who drew the political cartoon of the Brooks-Sumner Affair, supported Sumner in his fight for anti-slavery. The incident between Brooks and Sumner happened during a two day-speech delivered by the latter against slavery. It was in 1856 that a senator from South Carolina named Preston Brooks attacked Massachussetts congressman known as Charles Sumner. The attacked was provoked by the anti-slavery speech delivered by the Congressman that angered Brooks. Brooks' cane in the incident has been broken while Sumner suffered serious illness due to the beating.
Eliminate B and C immediately. The word integrated means to combine or bring things together, which makes the answer choice D wrong. The best choice is A. I hope this helps.
The neutrality proclamation stated that the United States can't take sides with European countries that are at war.