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': 'Best Scale to measure pain in children of 5 years age would be \nSelect and explain. \nA. VAS, B. Mc Gill Scale, C. Faces Scale, D. CHEOPS', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. CHEOPS', 'role': 'assistant'}]