Final answer:
The excerpts provided come from a narrative context within the English Literature discipline, where characters are dealing with themes of morality and responsibility.
Step-by-step explanation:
The dialogue snippets provided indicate a context within a literary narrative, most likely a story or play, where questions of morality, guilt, and responsibility are explored. These excerpts suggest different characters contemplating or discovering who is responsible for certain actions, particularly violent or reprehensible ones. Such passages are rich with thematic elements like betrayal, vengeance, and the weight of conscience, which are common in literary studies. The process of characters questioning each other and themselves about actions and motives is important for building suspense, developing character, and driving the plot forward in literature.