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 Volkmann's ischaemia, surgery should be done within: 
Select and explain. 
A. 24 hours, B. 36 hours, C. 1 hour, D. 6 hours
C: 1 hour
Answer: C: 1 hour 
Explanation: C i.e. 1 hour