This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autonomic nervous system, Subject name: Pharmacology
Major neurotransmitter released at end organ effectors of the sympathetic division of autonomic nervous system 
Select and explain. 
A. Adrenaline, B. Nor adrenaline, C. Dopamine, D. Acetylcholine
B: Nor adrenaline
Answer: B: Nor adrenaline 
Explanation: Refer katzung 10e p76,kdt 6/e 116 Neurotransmitter secreted at the end organ effects of sympathetic system is mostly nor adrenaline (except hair follicles and sweat glands, where it is Acetylcholinesterase) where as it is acetylcholine in parasympathetic system