Answer:
O Leaving school.
Step-by-step explanation:
Sandra Cisneros's "The House on Mango Street" is a story about the life of a twelve-year-old girl named Esperanza. The immigrant family's life on Mango Street is shown through the perspective of the young protagonist.
Esperanza's mother's regret about her decision to quit school is mentioned in the chapter "Smart Cookie". Here, Esperanza reveals how her mother complained about her life and how she should have been something else. Mama said, "You want to know why I quit school? Because I didn't have nice clothes. No clothes, but I had brains." These lines show her regret in leaving school.
Thus, the correct answer is the first option.