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 increased ICT, agent used for anesthesia 
Select and explain. 
A. N20, B. Trilene, C. Ether, D. Isoflurane
D: Isoflurane
Answer: D: Isoflurane 
Explanation: D i.e. Isoflurane