This is on K12 if you know the answer

Read the excerpt from "The Difficult Path."

When I was sold to the Li family, my mother let Mrs. Li take me only after she'd promised that I would be taught to read. "Her mother had fourteen other children starving and clinging to her, yet she was still insisting that I promise." Mrs. Li sniffed and began a high-pitched imitation. "'Promise me that when she's six, you'll have her taught to read! On your ancestors' grave! Promise!'"

How does the excerpt contribute to the structure of the story?

It introduces the idea that Mrs. Li wants to do her best to care for Lingsi.

It foreshadows that learning to read will be important to later events in the story.

It explains the circumstances that lead Lingsi's mother to sell her to the Li family.

It establishes the respect that Mrs. Li has for Lingsi's mother.