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: Biochemistry
[{'content': 'Ceruloplasmin contains ? \nSelect and explain. \nA. Zn, B. Cu, C. Se, D. Fe', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Cu Copper containing enzymes are cytochrome oxidase, tyrosinase, lysyl oxidase, ferroxidase (ceruloplasmin), Ascorbic acid oxidase, and superoxide dismutase.", 'role': 'assistant'}]