What are the options? And what's the story?
Answer:
I answered with 'gaunt, dull, waste' and my assignment :)
Allegory. Nature.
Theme. The need for each individual to avoid conformity and false consistency, and follow their own instincts and ideas.
Metaphor. "The eye was placed where one ray should fall, that it might testify of that particular ray.
Allusion.
Point of View.
Simile.
Imagery.
Irony.
Answer:
She explains to him that he has an upper hand in the situation (knowing that Jack was saying bad things about him). She then tells him that if he refuses to go back to school on his own, she'll tell their parents who will tell the school principle and that everyone will start treating him like a freak that needs to go to a special needs school. That is ultimately what makes up his mind to go back.