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: Physiology
Corpus luteum is maintained by : 
Select and explain. 
A. Progesterone, B. LH, C. FSH, D. Estrogen
B: LH
Answer: B: LH 
Explanation: B i.e. LHAction of LH areStimulates ovulation12.Formation & maintenance of corpur luteumQFormation of progesterone in the corpus leutieum from the lutein cellsQ.