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': 'Which one is not a two way communication? \nSelect and explain. \nA. Group discussion, B. Workshop, C. Lecture, D. Panel discussion', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]