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': 'True about ‘total fertility rate’ is \nSelect and explain. \nA. Sensitive indicator of family planning achievement, B. Completed family size, C. Number of live births per 1000 married women in reproductive age group, D. Average number of girls born to a woman', 'role': 'user'}, {'content': 'Answer: B \nExplanation: • Standardized index for fertility level.\n• Average no. of children a woman would bear in her reproductive life span; Also known as ‘Period Total Fertility Rate.’\n• Gives magnitude of approximately ‘completed family size’ – no. of alive children in a family.\n• Obtained by summing single-year age-specific rates at a given time.\n• TFR is a synthetic rate: Is not actually counted, as this would involve waiting until women complete childbearing.', 'role': 'assistant'}]