This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Physiology
Ovulation is associated with sudden rise in 
Select and explain. 
A. Testosterone, B. Prolactin, C. LH, D. FSH
C: LH
Answer: C: LH 
Explanation: Ovulation is associated with LH surge Ref: guyton and hall textbook of medical physiology 12 edition page number:641,642,643