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: Medicine
[{'content': 'Respiratory syncytial virus causes all except \nSelect and explain. \nA. Cold in children, B. Coryza in adults, C. Pneumonia in elderly, D. ARDS', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]