D. absolutely. that is how you correctly write the date.
Setting is a crucial part of characterization and development of a character. Setting shows what social class the character might be in, living conditions, how they dress etc. and all of these traits are part of characterization.
The police do not treat Enrique well, they rob him and deport him, the same thing happens to other migrants. The police arrest Enrique twice and deport him in his first attempt to travel north. Enrique and his mother live in a trailer. Finally Enrique changes his compotamiento and stops using drugs because he wants a better relationship with his mother.
They are used to list the things he will be doing.