This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Obstetric Anesthesia, Subject name: Anaesthesia
Which inhalational agent is best uterine relaxant? 
Select and explain. 
A. Halo thane, B. Isoflurane, C. Sevofiurane, D. Desflurane
A: Halo thane
Answer: A: Halo thane 
Explanation: ANSWER: (A) HalothaneREF: Synopsis of Anaesthesia p.168Best uterine relaxant is halothane followed by ether