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': 'Which of the following is the activator of enzyme Sulfite oxidase? \nSelect and explain. \nA. Copper, B. Zinc, C. Molybdenum, D. Iron', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The active site of sulfite oxidase contains the molybdopterin cofactor and suppos molybdenum in its highest oxidation state. Sulfite oxidase deficiency is an inborn error of the metabolism of sulfated amino acids and most commonly present in the neonatal period with intractable seizures, characteristic dysmorphic features, and profound mental retardation.', 'role': 'assistant'}]