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: Anaesthesia
[{'content': 'True about aspiration pneumonia \nSelect and explain. \nA. Affected by volume of aspiration, B. Affected by pH of aspiration fluid, C. TIncidence during induction, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: All i.e. A, B, C', 'role': 'assistant'}]