Since Amy Tan's mother, who is a non-English speaker, receives a rude treatment from the doctor, it depicts a certain discrimination towards those who could not speak English against those who can whether an accent is present or not. It was confirmed when the doctor became polite to Tan when she spoke English.
Because it ended up helping to make the story work just write a long pargraph that doesnt make sence in edgunity and it would give you 100%
Answer: I believe it's B, although it may be D.