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: Gynaecology & Obstetrics
Mechanism by which IUCD does not act: 
Select and explain. 
A. Chronic endometrial inflammation, B. Increase the motility of tubes, C. Inducing endometrial atrophy, D. Inhibition of ovulation
D: Inhibition of ovulation
Answer: D: Inhibition of ovulation 
Explanation: Mechanism of Action Of IUCD: