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': 'Denominator in General feility rate is? \nSelect and explain. \nA. Married women in reproductive age group in a given year, B. Women in reproductive age group in a given year, C. Married women in any specified age group, D. Women in any specified age group', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Women in reproductive age group in a given year", 'role': 'assistant'}]