Final answer:
Without further context, the significance of Mr. and Mrs. Bates to Carlotta cannot be determined from the provided extracts. Knowing more about their relationship would clarify their impact on Carlotta's story.
Step-by-step explanation:
The significance of knowing Mr. and Mrs. Bates for Carlotta is not detailed in the extracts provided, so it is not possible to provide a specific answer to the question without additional context or information about the relationship between Carlotta and Mr. and Mrs. Bates. In literature, the introduction and understanding of certain characters often provide depth to the protagonist's story and influences their journey whether through social connections, conflict, or personal development. An understanding of Carlotta's interactions and relationship with Mr. and Mrs. Bates would reveal the importance of these characters to her narrative.