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: Forensic Medicine
Rate of involution uterus following delivery: FMGE 09, 11 
Select and explain. 
A. 1 cm/day, B. 1.25 cm/day, C. 2.25 cm/day, D. 2.5 cm/day
A: 1 cm/day
Answer: A: 1 cm/day 
Explanation: Ans. 1 cm/day