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 fracture of the tooth bearing segment of the\nmandible is \nSelect and explain. \nA. Simple, B. Complex, C. Compound, D. Comminuted', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]