This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology metabolism, Subject name: Physiology
[{'content': 'Which of the following hormones increase during sleep? \nSelect and explain. \nA. Insulin, B. ACTH, C. GH, D. Glucocorticoid', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans: C (GH) Ref: Pal GK. Pituitary Gland: The Anterior Pituitary, In: Textbook of Medical Physiology, Ahuja Publishing House 2007: 44:328,336Explanation:70% of total 24 hours GH secretion occurs during sleep. Adequte sleep promotes growth.ACTH - 75% of daily secretion occurs in early morning.Insulin secretion is mainly decided by glucose uptake and its plasma concentration.Glucocorticoid secretion follows the ACTH pattern.', 'role': 'assistant'}]