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': 'Dr. Taggart is associated with \nSelect and explain. \nA. Discovery of Ceramics, B. Lost wax technique, C. Acid etch technique, D. Bleaching procedures', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]