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
Marker of ovarian reserve, estimated for infeility:- 
Select and explain. 
A. Antral follicle size, B. LH/FSH ratio, C. Inhibin A, D. Anti-mullerian hormone
D: Anti-mullerian hormone
Answer: D: Anti-mullerian hormone 
Explanation: Ovarian reserve tests are to assess the quantity as well as the quality of primordial Follicles present in the women's ovary Test for ovarian reserve Serum day 3 FSH levels Serum inhibin B levels Clomiphene citrate challenge test Serum anti mullerian hormone (AMH): It is produced by the granulosa cells of the preantral small follicles Antral follicle count ( AFC) Serum estradiol levels