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': 'Contra indication for nasotracheal intubation \nSelect and explain. \nA. Anterior cranial fossa #, B. Middle cranial fossa #, C. Post cranial fossa #, D. GCS < 8', 'role': 'user'}, {'content': 'Answer: A \nExplanation: In anterior cranial fossa # and maxillo facial injuries it is avoided.', 'role': 'assistant'}]