Bildunsgroman narratives are a subgenre of realistic fiction. What characteristic did the narratives have defined? A. The protagonist is often put in life-threatening situations. B. The protagonist solves crimes by putting together clues. C. The protagonist faces numerous hardships in the story. D. The protagonist progresses from childhood to adulthood.

The correct answer is D. the protagonist progresses from childhood to adulthood. Bildungsroman is a type of a novel which has to do with a protagonist growing up. We can see him in his childhood, we can see how he progresses through life, changes, becomes more mature and adult, which is why D is the only correct answer here. The protagonist doesn't have to be put in scary situations, or solve crimes, or face hardships - he just has to grow up. Examples would be 'Portrait of the Artist as a Young Man,' or even the Harry Potter series.