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
[{'content': 'Exception of Meyer oveon rule are A/E \nSelect and explain. \nA. Nonanaesthetics, B. Nonimmobilizer, C. Cut off effect, D. Hydrophobic site', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Hydrophobic site Non anesthetics/ nonimmobilizers, cut off effect convulsant gases, isomers, hydrophilic site and critical volume expanism hypothesis provide exceptions to the meyer - oveon ruleQ.', 'role': 'assistant'}]