Britians weaknesses are talking without thinking. Reconciliation won't be possible due to Britain having control over America.
A modern scholarly article, the first three are primary sources (Text or items from the time period being investigated) and the last one is a secondary source which was written by someone investigating that time period, therefor it is not an artifact
The correct answer to this open question is the following.
Although there are no options attached we can say the following.
The civil war tested the foundation of a country that uses democracy in that the civil war confronts people from the same country on the battlefield for political and economic reasons.
It is hard to believe that people from the same nationality -brothers we could say in a metaphorical way- confront each other to the extreme of seceding from the Union and fight using weapons. A civil war is an internal battle that hurts democracy and the legitimacy of the government that the founding fathers so carefully planned for the United States since colonial American times.
A civil war separates, divides. As President Abraham Lincoln said in his famous speech "A House divided," if a country is divided from within, this not only hurts democracy and freedom but also impacts all aspects and foundations of a nation.
The place where buyers and sellers deal for grain is the grain exchange, a place that acts as a meeting point and association, providing marketing facilities and others advantages to its members. Most commonly, farmers who grow the grain bring it to In the Grain Exchange, where it is weighed and graded. After that, a payment is made to the producer and the grain is sold.
The second answer. Constitutionalism.