system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Eligible couple means
assistant
The correct answer is  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