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': 'The adams clasp is made of: \nSelect and explain. \nA. 24 mil wire, B. 28 mil wire, C. 23 mil wire, D. 22 mil wire', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]