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: Radiology
[{'content': 'Curie is unit for: \nSelect and explain. \nA. Exposure, B. Absorbed dose, C. Degree of potential danger to health, D. Quantity of radionuclide disintegrating per second', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. Quantity of radionuclide disintegrating per second', 'role': 'assistant'}]