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: Pharmacology
All are endogenous catecholamines except ? 
Select and explain. 
A. Epinephrine, B. Norepinephrine, C. Dopamine, D. Dobutamine
D: Dobutamine
Answer: D: Dobutamine 
Explanation: Ans. is 'd' i.e., Dobutamine Catecholamines Endogenous : -Adrenaline, noradrenaline, dopamine. Synthetic : - Isoprenaline, Dobutamine, Dopexamne, Fenoldopam, Dipivefrine, Ibopamine.