Why does bierce use a flashback in section 2 of "an occurrence at owl creek bridge" instead of proceeding with the events taking place?

1.to introduce peyton farquhar
2.to emphasize the folly of romanticism
3.to depict the cunningness of the federal soldiers
4.to emphasize the naivety of the confederacy
5.to the reader know what led to the events in section 1

1, 2, 3

3, 4, 5

1, 2, 5

2, 3, 5

1, 4, 5

The correct answer for the question that is being presented above is this one: "to emphasize the folly of romanticism." Bierce use a flashback in section 2 of "An Occurrence at Owl Creek Bridge" instead of proceeding with the events taking place in order to emphasize the folly of romanticism. 

The correct answer for the question that is being presented above is this one: "c. 1,2,5." 

a. fill-in-the-blank form