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': 'Defective neutrophil function is seen in all except: \nSelect and explain. \nA. Juvenile periodontitis, B. Diabetes, C. Papillon lefeure syndrome., D. Gingivitis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Severe periodontitis occurs in patients with neutrophil defects.\nDefective neutrophil function is seen in: \n\nPapillon Lefeure syndrome.\nChediak Higashi syndrome.\nJuvenile periodontitis.\nNeutropenia\nAgranulocytosis\nDiabetes', 'role': 'assistant'}]