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 clinical finding in a case of head injury is - \nSelect and explain. \nA. Pupillary dilatation, B. Level of consciousness, C. Focal neurological deficit, D. Fracture skull', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is `b' i.e., Level of consciousness", 'role': 'assistant'}]