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: Gynaecology & Obstetrics
[{'content': 'MMR is expressed in: \nSelect and explain. \nA. Per 1000 live birth, B. Per 10000 live birth, C. Per 1 lac live birth, D. Per 10 lac live birth', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The maternal mortality rate should be expressed as a rate per 1000 live births.\nMaternal Mortality Rate:', 'role': 'assistant'}]