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': 'Coenzyme in decarboxylation reaction: \nSelect and explain. \nA. Niacin, B. Biotin, C. Pyridoxine, D. Riboflavin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C. PyridoxineCoenzyme for carboxylation reaction--BiotinCoenzyme for decarboxylation--PyridoxineCoenzyme for decarboxylation reactions of Alpha Ketoglutate dehydrogenase and Branched chain Ketoacid dehydrogenase-- Thiamine.', 'role': 'assistant'}]