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 vitamins act as coenzyme in decarboxylation reaction? \nSelect and explain. \nA. Pyridoxine, B. Riboflavin, C. Biotin, D. Niacin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Coenzyme\xa0 for carboxylation reaction - Biotin\nCoenzyme\xa0 for decarboxylation reaction - Pyridoxine', 'role': 'assistant'}]