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': 'Population covered by Anganwadi in tribal area is \nSelect and explain. \nA. 700, B. 100, C. 400, D. 1000', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]