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: Surgery
[{'content': 'In a patient of cardiopulmonary arrest best way of airway mantainence is: \nSelect and explain. \nA. Bag valve mask ventilation., B. Nasotracheal intubation., C. Orotracheal intubation., D. Guedel airway.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: OROTRACHEAL INTUBATION\nIndicated\n\nEmergency cases(2-3 min)\nCardiopulmonary arrest cases\n(Cordiopulmonary Resuciation)\nOf Bone in around Nose', 'role': 'assistant'}]