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': 'Faulty registration of occlusion cannot be directly attributed to \nSelect and explain. \nA. Viscosity, B. Pain in the muscles of mastication, C. Pain in the TMJ, D. Skeletal class III relation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]