This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: A.N.S., Subject name: Pharmacology
All are catecholamines EXCEPT 
Select and explain. 
A. Dopamine, B. Epinephrine, C. Noradrenaline, D. Dobutamine
D: Dobutamine
Answer: D: Dobutamine 
Explanation: (Dobutamine): (124-KDT 7th edition)DOBUTAMINE - ("Cardiac stimulant") A derivative of dopamine, but not a D1 or D2 receptor agonist, though it acts on both alpha and beta adrenergic receptorsIt is used as an inotropic agent in pump failure accompanying MI, cardiac surgery, and for short term management of severe CHF. It is less arrhythmogenic adrenalineCatecholamines -1. Noradrenaline 2. Adrenaline 3. Dopamine