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: Pharmacology
Percentage of lignocaine used in spinal anaesthesia is : 
Select and explain. 
A. 0.50%, B. 1%, C. 2%, D. 5%
D: 5%
Answer: D: 5% 
Explanation: None