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
Least diffusion coefficient is for – 
Select and explain. 
A. Isoflurane, B. Enflurane, C. Halothane, D. N2O
D: N2O
Answer: D: N2O 
Explanation: Amongst the given options, N2O has minimum diffusion coefficient.