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
[{'content': 'HCG is produced by \nSelect and explain. \nA. Kidney, B. Placenta, C. Pituitary, D. Liver', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Chorionic gonadotropin (human chorionic gonadotropin (HCG) (hCG)) is a glycopeptide hormone that is produced by cells of the fetal placenta and maintains the function of the corpus luteum during the first few weeks of pregnancy.Ref: Ganong&;s review of medical physiology;24th edition; page no:-414', 'role': 'assistant'}]