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
In patient of head injury with rapidly increasing intracranial tension without haematoma, the drug of choice for initial management would be- 
Select and explain. 
A. Lasix, B. Steroids, C. 20 % Mannitol, D. Glycine
C: 20 % Mannitol
Answer: C: 20 % Mannitol 
Explanation: None