Your answer would be Dialogue :)
I would agree with you - the conclusion should leave readers with an important thought at the end.
This thought should never be new, or opposing to the previous ideas you had been writing before. It also shouldn't be confusing, but quite conversely - it should explain everything and put everything in place.
Answer:
The auther uses those details to paint a picture in your mind of what is going on in Madame Loisels life its saying that she is not really poor but also not really rich but she wants to be rich
Explanation: