This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: vitamins, Subject name: Biochemistry
[{'content': 'The only fat-soluble vitamin that has coenzyme function \nSelect and explain. \nA. A, B. D, C. E, D. K', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Vitamin k acts as a Coenzyme in the formation of g-carboxyglutamate in enzymes of blood clotting and bone matrix.All water-soluble vitamins act as coenzymes.Harper 30th edition pg: 550', 'role': 'assistant'}]