Final Answer:
The purpose of paragraphs 23–24 is to reveal why Easton became a marshal (option B).
Step-by-step explanation:
Paragraphs 23–24 of the text delve into the backstory of Easton, shedding light on the reason behind his decision to become a marshal. These paragraphs provide insight into Easton's past, explaining how he had initially pursued a different profession before circumstances led him to take up the role of a marshal. The narrative reveals the motivations and events that shaped Easton's career path, detailing the factors that influenced his choice to become a marshal, thereby focusing on his personal history rather than exclusively on the train passengers' gossip or travel purposes (option B).
The paragraphs contribute to character development by offering crucial information about Easton's background and motivations. They elucidate how Easton's past experiences or aspirations played a pivotal role in determining his career path. Understanding Easton's reasons for becoming a marshal adds depth to his character, providing context and a deeper understanding of his persona beyond the immediate events unfolding on the train. The revelation in these paragraphs helps in comprehending Easton's perspectives and actions within the narrative.
Therefore, paragraphs 23–24 serve the purpose of revealing the underlying reasons behind Easton's decision to pursue the occupation of a marshal, enhancing the readers' understanding of his character and contributing to the overall development and depth of the storyline.