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': 'MDPI  does not include \nSelect and explain. \nA. Health, B. Per capita income, C. Education, D. Standard of living', 'role': 'user'}, {'content': 'Answer: B \nExplanation: MDPI includes\n\nHealth.\nEducation.\nStanderd of living.', 'role': 'assistant'}]