How do the actions of the narrator’s mother help to advance the plot?

A
The mother tries to comfort the narrator, which introduces the protagonist of the story.

B
The mother decides to accept a job promotion, which brings about the climax of the story.

C
The mother asks the narrator to leave the apartment, which is the main source of conflict in the story.

D
The mother interrupts the narrator’s daydream, which brings about the resolution of the story.