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
Stage of contraction of family stas at 
Select and explain. 
A. Bih of first child, B. Bih of last child, C. Leaving home of first child, D. Marriage
C: Leaving home of first child
Answer: C: Leaving home of first child 
Explanation: Ans. is 'c' i.e., Leaving home of first child