The aspect of fiction that realist writers use to advance the plot of their story would be : The complexity of the characters.
Realist writers tend to advanced the plot by somehow explaining the motives that influence each characters, creating a tension and plot based on our human understanding and empathy
B describes the lost generation.
Good question it depends on how dangerous and the people
In 1865 and 1866, after the civil war. I'm not sure who wrote them