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: Dental
[{'content': 'Internal resorption may follow all except \nSelect and explain. \nA. trauma, B. root fracture, C. successful root canal filling, D. Enamel fracture', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]