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': 'A patient with a rational, sensible, calm and composed disposition is: \nSelect and explain. \nA. An exacting patient, B. A hysterical patient, C. An indifferent patient, D. A philosophical patient', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]