This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Enzymes, Subject name: Biochemistry
[{'content': 'Which of the following is a selenium-dependent enzyme? \nSelect and explain. \nA. Glucokinase, B. Aminotrasnferase, C. Glutathione peroxidase, D. Lysyl hydroxylase', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Selenium is a trace element nutrient that functions as a cofactor for glutathione peroxidases and ceain forms of thioredoxin reductase.', 'role': 'assistant'}]