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': 'The concept of lingualised occlusion was put forward by \nSelect and explain. \nA. Gysi, B. Mc Grane, C. Sears, D. Payne', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]