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': 'A patient with head injury, Glass Gow coma scale 8, having\nmid-face fracture,\tCyanoses and decreased breathing\nwith frequent apnea and low oxygen management, the method of airway maintenance is? \nSelect and explain. \nA. Oropharyngeal airway, B. Orotracheal airway, C. Nasotracheal airway, D. Cricothyrotorny', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]