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': 'Not a component of communication process \nSelect and explain. \nA. Sender, B. Message, C. Feedback, D. Propaganda', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Component of communication process :\n\nSender.\nMessage.\nReceiver.\nFeedback.\nChannels.', 'role': 'assistant'}]