A writer can effectively use the technique of setting out a problem in a narrative hook by focusing on d) making the problem interesting. While all options can enhance a narrative in different ways, presenting a problem that captures the reader's curiosity and invites them to explore the story further is the most effective approach for a compelling hook.
An interesting problem can be unique, relatable, or thought-provoking, encouraging readers to want to learn more about the characters and their journey to resolve the issue. Additionally, an interesting problem can set the tone of the narrative and provide insight into themes that will be explored throughout the story.