Question

Your teacher assigns you a research paper on political changes in the United States during the Civil War. Which source would best aid your research?

Answer 1

a textbook or a reliable source on google

Answer 2

Do you have answer choices?
If not, I'd say maybe a website with facts on the political system. You would just have to select the correct time frame. You could also get a history book and see if there is a section about the political state during the Civil War. I'd also say maybe books written about the Civil War time frame and try and gather any information you can from there.

Answer 3

To be honest anything but Wikipedia