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: Social & Preventive Medicine
[{'content': "In the term 'CuT 200', the number denotes which of the following parameters? \nSelect and explain. \nA. Weight in Microgram, B. Weight in Milligram, C. Surface area, D. Length of Thread/Tail", 'role': 'user'}, {'content': 'Answer: C \nExplanation: CuT 200 is otherwise known as Copper T. It refers to the surface area (in sq.mm) of the copper on the device.', 'role': 'assistant'}]