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': 'All of the following are included in methods based on behavioural sciences, except: \nSelect and explain. \nA. Personal management, B. System analysis, C. Management by objectives, D. Communication', 'role': 'user'}, {'content': 'Answer: B \nExplanation: System analysis', 'role': 'assistant'}]