This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anaesthesia, Subject name: Anaesthesia
[{'content': 'The triad of general anaesthesia includes \nSelect and explain. \nA. Unconsciousness, analgesia and muscle relaxation, B. Anxiolysis, analgesia and unconsciousness, C. Muscle relaxation, sedation and analgesia, D. Dissociation, analgesia and muscle relaxation', 'role': 'user'}, {'content': "Answer: A \nExplanation: The triad of general anesthesia : Unconsciousness (narcosis) analgesia muscle relaxation The pentad of anesthesia: Loss of consciousness loss of reflex response amnesia muscle relaxation analgesia Ref: Miller's anesthesia 8th edition Ref: Morgan & Mikhail's clinical anesthesiology 6e", 'role': 'assistant'}]