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': 'Tell, Show and Do technique was introduced by \nSelect and explain. \nA. Bandura., B. Addleson., C. Jordan., D. Wilson and Kent.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]