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: Physiology
GH secretion is: 
Select and explain. 
A. Greater in early morning, B. Greater in evening, C. Increased on prolonged fasting, D. Stimulates B-­cells of pancreases directly
C: Increased on prolonged fasting
Answer: C: Increased on prolonged fasting 
Explanation: None