It is easiest to order your ideas when you have developed an outline of your ideas.
Supporting details can do all of the following except A. Introduce the main idea.
Answer: The reader is treated to a detailed and very focused account of a single event.
Explanation:
because it is a first person so what the protagonist is experiencing is explained to you
The correct answer is A. To show the different scenes in the story and better show the consequences of a character's choices and actions. The way the author breaks up the chapters, by a character making a choice in one and the result being revealed in the next chapter highlights this fact.