This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concept of health and disease, Subject name: Social & Preventive Medicine
[{'content': 'Eligible couple means \nSelect and explain. \nA. A couple having 2 living children, B. A couple having given bih to 2 children, irrespective of their survival status, C. A couple with wife aged 15-45 yrs, D. A couple who is ready for sterilization', 'role': 'user'}, {'content': "Answer: C \nExplanation: The eligible couple are currently married couple wherein the wife is in the reproductive age (i.e. 5 -49 yr. of age) Don't confuse with target couple: Eligible couples who have 2 - 3 living children Ref : Park 23rd edition Pgno : 492-493", 'role': 'assistant'}]