This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infeility (Eggs'plantation!), Subject name: Gynaecology & Obstetrics
Clomiphene citrate challenge test (CCCT) is used for 
Select and explain. 
A. Assessing LH rise prior to ovulation, B. Used for accurate diagnosis of PCOS, C. Estimating the luteal phase defect, D. Method to asses the ovarian reserve of a woman
D: Method to asses the ovarian reserve of a woman
Answer: D: Method to asses the ovarian reserve of a woman 
Explanation: Clomiphene citrate challenge test : Used to asses the ovarian reserve of a woman On D3- Check serum FSH ON D5- D9 - Give 100mcg Clomiphene citrate (CC) On D10- Check serum FSH High FSH value on D3 which increases fuher on D10 : indicates poor reserve