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': "Maternal mortality rate the denominator is: \nSelect and explain. \nA. 1000 live births ', B. 100 live births, C. 1000 total births, D. 100 total births", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Explanation:\nThe denominator 1000 live births is the best choice. Strictly speaking Maternal mortality ratio:\nNumber of maternal deaths during a given time period per 100,000 live births during same time period.\nIn many countries reporting and recording of live birth is more complete than that of total births. Hence live birth is taken as the denominator in most indicators.\nThe denominator of 100.000 is taken so as to avoid decimals when in the maternal mortality decreases to a great extent. Maternal mortality rate:\nNumber of maternal deaths in a given period per 100.000 women of reproductive age during the same time period.', 'role': 'assistant'}]