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': 'In health education program, a group of 10 people are planning to speak on a single topic of common interest. Which one of the following is best educational approach? \nSelect and explain. \nA. Panel discussion, B. Symposium, C. Group discussion, D. Workshop', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]