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': 'In emergency caesarian section rapid induction of anaesthesia is done to – \nSelect and explain. \nA. Prevent gastric aspiration, B. Prevent fetal depression, C. To decrease awareness, D. All of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Rapid sequence induction is given for emergency surgery and patient has full stomach. Therefore, the objective of rapid sequence anaesthesia is to secure the airway rapidly and prevent aspiration of gastric contents.', 'role': 'assistant'}]