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
Which of the following is called hunger hormone 
Select and explain. 
A. Epinephrine, B. Glucagon, C. Pituitary, D. Thyroxine
B: Glucagon
Answer: B: Glucagon 
Explanation: None