Final answer:
The detail that best shows conflicting perspectives would likely involve a clash between personal beliefs or emotions and external opinions.
Step-by-step explanation:
To identify which detail from the excerpt best shows the conflicting perspectives between Henry and his friend, one would need to compare the presented perspectives and analyze the differences between them. In the provided excerpts, the sense of conflict is implied through the characters' understanding of their environment and their interactions. For example, Henry James' description emphasizes a child's developing awareness and the realization of different family units which could imply a contrast in perspectives on family and growth between Henry and a friend who might have a more traditional or simplistic view. Mark Twain's anecdote illustrates conflict through self-doubt and the influence of others on one's confidence, showcasing a personal perspective versus an external, possibly conflicting, one. Lastly, the dialogue between CLAIRE and HARRY captures a direct encounter of conflicting perspectives on hospitality and self-interest.
Without more context or a specific reference to the friend mentioned in the student's question, we are left to infer from these excerpts that the conflict often arises from an individual's inner thoughts and emotions clashing with external opinions or the realities of their situation.