The dispute between north and south over slavery spreading to the new western territory/Louisiana purchase
Although direct democracy had been used in some of the colonies, the framers of the Constitution granted voters no legislative or executive powers, because they feared the masses would make poor decisions and be susceptible to whims. During the Progressive Era, however, governments began granting citizens more direct political power. States that formed and joined the United States after the Civil War often assigned their citizens some methods of directly implementing laws or removing corrupt politicians. Citizens now use these powers at the ballot to change laws and direct public policy in their states.
I believe the answer is: reflect the reality of the characters' situation in a straightforward manner.
By doing this, Hemmingway able to separate narrator's opinion with the actual event that happen to the characters. This would provide the readers with the opportunities to analyze and judge the event by themselves without unconsciously influenced by the writer's opinion.
Yes, it is. That is true.
I think the answers are 2, 1, 3, 4