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: Social & Preventive Medicine
[{'content': 'Example of one way communication \nSelect and explain. \nA. Socratic method, B. Didactic method, C. Visual communication, D. Telecommunication', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]