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: Pathology
[{'content': 'Proopiomelanocoin is released from \nSelect and explain. \nA. Hypothalamus, B. Liver, C. Adrenal, D. Lung', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Proopiomelanocoin (POMC) is the pituitary precursor of circulating melanocyte stimulating hormone (a-MSH), adrenocoicotropin hormone (ACTH), and b-endorphin released from hypothalamus.', 'role': 'assistant'}]