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
Emergence delirium is associated with – 
Select and explain. 
A. Pentothal sodium, B. Ketamine, C. Droperidol, D. Halothane
B: Ketamine
Answer: B: Ketamine 
Explanation: None