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
Neurolept analgesia all are true except : 
Select and explain. 
A. Can be used along with 02 & N20, B. Causes focal dystonia, C. Fentanyl- droperidol, D. None
D: None
Answer: D: None 
Explanation: D i.e. None