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 a case of acute trauma best guidline for quick replacement of fluids is - 
Select and explain. 
A. Pulse, B. Hb, C. Urine Output, D. C.V.P.
C: Urine Output
Answer: C: Urine Output 
Explanation: None