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': 'The number of live birth per 1000 women in the reproductive age group in a year refers to \nSelect and explain. \nA. General Fertility Rate, B. Gross Reproduction Rate, C. Net Reproduction Rate, D. Total fertility rate', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]