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
Which of the following anaesthetic agents have good analgesic property ?a) Ketamineb) Nitrous oxidec) Thiopentoned) Propofole) Midazolam 
Select and explain. 
A. ab, B. a, C. ad, D. bc
A: ab
Answer: A: ab 
Explanation: General anaesthetics with analgesic action → ketamine, trilene (trichloro ethylene), N2O, ether.