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
Women undergoing infertility treatment are advised to avoid NSAIDs in preovulatory period because 
Select and explain. 
A. Prostaglandins contribute to ovulation, B. NSAIDs inhibit LH surge, C. NSAIDs cause premature rupture of follicle, D. NSAIDs like aspirin cause endometrial shedding.
A: Prostaglandins contribute to ovulation
Answer: A: Prostaglandins contribute to ovulation 
Explanation: Prostaglandin stimulates smooth muscle contraction in ovary, contributing to ovulation.  prostaglandin synthetase inhibitors if taken in pre ovulatory period can cause luteinized unruptured follicle syndrome (LUFS).