This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of protein and amino acid, Subject name: Biochemistry
[{'content': 'Dopamine beta-hydroxylase catalyzes \nSelect and explain. \nA. Dopa to dopamine, B. Norepinephrine to dopamine, C. Epinephrine to norepinephrine, D. Dopamine to norepinephrine', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Dopamine is hydrolysed by Dopamine beta hydroxylase to Norepinephrine or Adrenaline.Ref: DM Vasudevan - Textbook of Biochemistry, 7th edition, page no: 235', 'role': 'assistant'}]