Short Answer 
The primary characters in the conversation from *The Strange Case of Dr. Jekyll and Mr. Hyde* are Dr. Jekyll and Mr. Utterson, who engage in a conflict over Jekyll’s will and his connection to Mr. Hyde. Their disagreement reveals tension, as Utterson is concerned for Jekyll’s well-being, while Jekyll’s reaction underscores the seriousness of their situation. The most accurate summary of their exchange is that they argue about the will and Hyde’s implications.
Step 1: Identify Key Participants
In the excerpt from *The Strange Case of Dr. Jekyll and Mr. Hyde*, the primary characters involved in the conversation are Dr. Jekyll and Mr. Utterson. Their interaction focuses on issues surrounding Jekyll’s will and his association with the mysterious character, Mr. Hyde. Understanding these participants is crucial as they set the stage for the conflict presented in the dialogue.
Step 2: Analyze the Conflict
The dialogue reveals a serious disagreement between Dr. Jekyll and Mr. Utterson regarding the will. Utterson expresses his disapproval of the changes made to Jekyll’s will, indicating a deep concern for Jekyll’s well-being. Dr. Jekyll’s reaction, characterized by his growing paleness and refusal to discuss Hyde, highlights the tension and the gravity of the situation between them.
Step 3: Determine the Most Accurate Summary
After analyzing the dialogue, option C emerges as the most accurate summary: “Dr. Jekyll and Mr. Utterson argue about Jekyll’s will and Mr. Hyde.” This option captures both the essence of their argument regarding the will and the shadowy implications surrounding Mr. Hyde, making it a comprehensive overview of the excerpt.