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
Adequate steroidogenesis in corpus luteum depends on serum levels of 
Select and explain. 
A. GnRH, B. FSH, C. LH, D. Oestrogen
C: LH
Answer: C: LH 
Explanation: LH levels in serum, determine adequate steroidogenesis in corpus Luteum.