Read this passage from "Rider in the City."
Based on this excerpt, Rider's sister is annoyed
because
"This is a good supper," said Rider, hoping to distract
his sister from her anger.
"It's not 'supper,' she said tensely. "It's 'dinner'!"
O Rider speaks differently than she does.
Rider thinks he's better than her.
O Rider lives with their father instead of her.
Rider is unappreciative their mother's cooking.