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': 'The difficulty score for an mesioangutar impacted mandibular 3rd molar, Class II and level II is \nSelect and explain. \nA. 5, B. 7, C. 10, D. 6', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]