Final answer:
The author builds towards Carrie's reflections by portraying her as observant and helpful, echoing the themes of self-reflection and identity noted in the other characters' narratives within the texts.
Step-by-step explanation:
The author builds towards Carrie's reflections by introducing her as an observant and helpful young woman, as indicated in the provided excerpts. This is most aligned with option B, where Carrie notices the routine of her sister and brother-in-law and their dynamic, as well as the symbolic use of domestic space to make statements about gender roles, as seen through Minnie's characterization in the play 'Trifles'. Additionally, the references to Cisneros's writing and musings about identity, Minnie Foster's feelings of lost identity, and other characters' inner reflections all serve to establish a pattern of contemplation and growth towards self-actualization, which colors Carrie's ultimate reflections.