This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Trauma, Subject name: Surgery
[{'content': 'Nexus criteria in trauma is used for \nSelect and explain. \nA. Intubation, B. Burns resuscitation, C. Blood transfusion, D. Taking X-Ray cervical spine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref: ALTS, 10th edition Pgno: 140', 'role': 'assistant'}]