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
[{'content': 'Hormones secreted by adrenal medulla are: \nSelect and explain. \nA. Glucagons, B. Coisol, C. Norepinephrine, D. Insulin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Norepinephrin', 'role': 'assistant'}]