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: Pathology
During lactation, uterine smooth muscles show 
Select and explain. 
A. Hyperplasia, B. Hypertrophy, C. Involution, D. Atrophy
C: Involution
Answer: C: Involution 
Explanation: None