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': 'Under the national population policy 2000, it is aimed to reduce the maternal moality ratio to below \nSelect and explain. \nA. 100 per 1,00,000 live bihs, B. 200 per 1,00,000 live bihs, C. 300 per 1,00,000 live bihs, D. 500 per 1,00,000 live bihs', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Reduce the infant moality rate to below 30 per 1,000 live bihs;Reduce the maternal moality ratio to below 100 per 100,000 live bihs', 'role': 'assistant'}]