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': 'The most impoant step in primary management of a patient with fracture veebral column: \nSelect and explain. \nA. Careful transpo of patient, B. Maintenance of airway, C. Treatment of shock, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Maintenance of airway', 'role': 'assistant'}]