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': 'Sellick manouever is used to prevent: \nSelect and explain. \nA. Alveolar collapse, B. Hypeension, C. Aspiration of Gastric content, D. Bradycardia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Aspiration of Gastric content', 'role': 'assistant'}]