This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition & Digestion, Subject name: Biochemistry
[{'content': 'Cofactor for dopamine hydroxylase - \nSelect and explain. \nA. Fe, B. Mg, C. Mn, D. Cu', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Cu o Dopamine b-hydroxylase is a 'copper ' containing monooxygenase that requires ascorbic acid and molecular oxygen.o It catalyzes the formation of norepinephrine.", 'role': 'assistant'}]