This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inhalational Anesthetic Agents, Subject name: Anaesthesia
Which inhalational anesthetic agent has analgesic effect- 
Select and explain. 
A. Xenon, B. Desflurane, C. Isoflurane, D. Sevoflurane
A: Xenon
Answer: A: Xenon 
Explanation: Potent inhalational agent does not have analgesic effect. Carrier gases N2O and Xenon provides good analgesic.