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': 'In patient of head injuries with rapidly increasing intracranial tension without hematoma, the drug of choice for initial management would be : \nSelect and explain. \nA. Lasix, B. Steroids, C. 20% Mannitol, D. Glycine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]