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: Medicine
[{'content': 'The hormone which links the obesity and puberty \nSelect and explain. \nA. Growth hormone, B. Thyroid hormone, C. Leptin, D. Ghrelin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]