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': 'GnRH is a \nSelect and explain. \nA. Peptide, B. Amine, C. Steroid, D. Lipid', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Gonadotropin-releasing hormone is a releasing hormone responsible for the release of follicle-stimulating hormone and luteinizing hormone from the anterior pituitary. GnRH is a tropic peptide hormone synthesized and released from GnRH neurons within the hypothalamus Ref: guyton and hall textbook of medical physiology 12 edition page number:550,551,552', 'role': 'assistant'}]