A reliable source
An unusual source means it could be wrong, and ancient source could contain incorrect information according to new information known in modern day, and although a source may be relevant, that does not necessarily mean it has correct information; it only means the information is connected to the subject you are researching.
Answer:
American farmer have supported the Populist Movement because the populists were in favor of "free silver," which would improve the economic outlook for small farmers.
<span>Choice (a) is correct. To make an amendment to the Articles, all 13 states had to agree. This made amendments particularly difficult: any one state could derail the entire process. This is why the Articles failed after such a short time, to be replaced by the current Constitution.</span>