This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Non communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'Child sex ration is - \nSelect and explain. \nA. Female 0-6/1000 males, B. Female 0-5/1000 males, C. Male 0-5/1000 females, D. 0-6male/1000 females', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Child sex ratio Is defined as number of female children 0-6 years age per thousand male children 0-6 years age Child sex ratio (India) : 919 (Highly unourable) Ref: Park 25th edition Pgno : 534', 'role': 'assistant'}]