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: Anaesthesia
In epidural anaesthesia drug is injected ? 
Select and explain. 
A. Outside the dura, B. Inside the duramater, C. Inside arachnoidmater, D. Inside piamater
A: Outside the dura
Answer: A: Outside the dura 
Explanation: Ans. is 'a' i.e., Outside the dura