Well, Its whatever the author is talking about. it's depending on the book or story. Like the Genre. It Varies, so he might be implying that it really is a glamorous piece of work or he is being sarcastic. Words and the way\ tone you use is very important.
13 years old lol are you asking for the book age or current age ??
Well not having the multiple choice I can only guess, but here are a few.
1- Thinking teens are not old enough to be considered smart, wise, or responsible
2- People don’t think teens have the right to voice their opinion, because how young they are.
3- people think all teenagers are the same because of the stereotypes that are in place for teenagers such as laziness, irresponsibility, and rebelliousness.
“their” and “she” are the pronouns because they are taking place of a noun (meaning a name).
extending for understanding:
so for “she” it’s taking place of a woman’s name. the sentence could also be, for example, “sally told me the house had red shutters and a blue door.” “she” is holding the place of the name sally.
and for “their” it’s holding the place of name of a group of people. this sentence could be, for example, “that’s not the smith’s house at the end of the street.” “their” is holding the place of the smith’s.