This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'Difficulty score for a mesioangular class II position C mandibular third molar is \nSelect and explain. \nA. 6, B. 7, C. 8, D. 9', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]