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 taper that should be present in a prepared tooth as abutment for FPD is \nSelect and explain. \nA. 10°, B. 6°, C. 2°, D. Is not important', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]