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': '25.\tThe calcium content in alloyed electrolytic precipitate is \nSelect and explain. \nA. 0.10%, B. 0.20%, C. 0.50%, D. 0.80%', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]