This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Which is an endogenous catecholamine \nSelect and explain. \nA. Dopamine, B. Dobutamine, C. Adrenaline, D. Nor adrenaline', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Refer kK sharma 2007/172 Dopamine, adrenaline and nor adrenaline are endogenous catrcholamine Adrenaline, dipevefrine, Dobutamine ,ibopamine,dopexamine and Fenoldopam are the exogenous (synthetic) catrcholamine', 'role': 'assistant'}]