Read this excerpt from “Mother Tongue” by Amy Tan.
When I was fifteen, she used to have me call people on the phone to pretend I was she. In this guise, I was forced to ask for information or even to complain and yell at people who had been rude to her.

How does this detail develop the central idea?
A It explains why the author’s mother was not able to speak fluent English.
B It supports the idea that people judged the author’s mother based on her language.

C It depicts how the author was embarrassed by her mother’s use of English.

D It reveals why the author felt frustration with her own mother.

Amy Tan is an American-Chinese author, her mother had difficulties with English and this reflects a lot on the works written by the author, especially in “Mother Tongue”, where the author reports moments when her mother suffered some prejudice or discrimination for not being able to. Speak english language perfectly. The paragraph shown in the above question is a clear example of this. In this paragraph, the author supports the idea that people have judged her mother based on her language, to the point that the author needs to complain and shout at people who were rude to her mother.