Final answer:
Twain would likely react with anger and possibly physical confrontations if Henry had not been in danger.
Step-by-step explanation:
In this passage, the student is asking about Mark Twain's potential reaction to Brown's insults if Henry had not been in danger. Since this question is asking about the potential actions and emotions of a fictional character, it falls under the subject of English. Specifically, it relates to the analysis of characters and their motivations.
When predicting how Twain would react to Brown's insults if Henry had not been in danger, we can consider Twain's personality and previous actions in the story. Based on the passage, Twain is shown to have a strong sense of pride and a tendency to react aggressively when insulted. Therefore, it is likely that Twain would have responded with anger and possibly even physical confrontations if Henry had not been at risk.
It's important to note that this prediction is based on the information provided in the passage, and the actual reaction of a fictional character can be open to interpretation. However, considering Twain's character traits and the context of the story, this prediction seems plausible.