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': 'Eligible couple is defined as: September 2005 \nSelect and explain. \nA. Married couple with husband inn reproductive age group, B. Married couple with wife in reproductive age group, C. Married couple irrespective of the age group, D. Married couple irrespective of the age group', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B: Married couple with wife in reproductive age group An eligible couple refers to a currently married couple wherein the wife is in reproductive age group, which is generally assumed to lie between the ages of 15-45. There will be at least 150-180 such couples per 1000 population in India.', 'role': 'assistant'}]