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': "Features of Binder's syndrome: \nSelect and explain. \nA. Maxillonasal dysplasia, B. Class 3 profile, C. Hypoplasia of nasal septum and premaxilla, D. All of the above", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Binder’s Syndrome\n\nMaxillo - nasal dysplasia\nHypoplasia\xa0of nasal septum & premaxilla\nAbsent ANS\nClass 3 profile', 'role': 'assistant'}]