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': 'Which is not a cause for ARDS - \nSelect and explain. \nA. Nitrofurantoin, B. CCF, C. Chlorine gas inhalation, D. Amniotic fluid aspiration', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]