This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Health education & planning, Subject name: Social & Preventive Medicine
[{'content': 'Most persuasive and effective media system for communication is: \nSelect and explain. \nA. Interpersonal communication, B. Mass Media(TV ,radio), C. Folk media, D. Printed media', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Interpersonal Communication (IPC): "Face to face communication" is the most persuasive and effective than other forms of communication IPC is paicularly useful for influencing the decisions of undecided persons Superiority of IPC over mass media has been well documented Ref: Park 25th edition Pgno: 926', 'role': 'assistant'}]