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: Unknown
[{'content': 'Approximate magnitude of completed family size is given by: \nSelect and explain. \nA. General fertility rate, B. Total fertility rate, C. Net reproduction rate, D. Pregnancy rate', 'role': 'user'}, {'content': 'Answer: B \nExplanation: TFR represents the average number of children a woman would have if she were to pass through her reproductive years bearing children at the same rates as women in each group. It gives the approximate magnitude of completed family size.', 'role': 'assistant'}]