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: Dental
[{'content': 'Residual monomer content of chemically activated resins is \nSelect and explain. \nA. 0.2% to 0.5%, B. 2% to 5%, C. 0.3% to 0.5%, D. 3% to 5%', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]