This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Demography and Family Planning, Subject name: Social & Preventive Medicine
[{'content': 'Sex ratio as per 2011 census- \nSelect and explain. \nA. 970, B. 940, C. 921, D. 915', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., 940 * Important findings of census 2011# Total population-1210 millions# Annual average growth rate-164%# Decadal growth rate-17-64%# Sex ratio-940# Birth rate-22-1%# Death rate-7-2# Literacy rate-74%# Life expectancy-64 5 years# Density of population-382", 'role': 'assistant'}]