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': 'Who developed the complete pulpectomy technique for primary molars? \nSelect and explain. \nA. Pinkham, B. Starkey, C. McDonald, D. Finn', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Starkey developed the complete pulpectomy technique for primary molars.', 'role': 'assistant'}]