This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition, Subject name: Medicine
[{'content': 'Which of the following vitamin is not associated with toxicity \nSelect and explain. \nA. Pantothenic acid, B. Pyridoxine, C. Vitamin A, D. Vitamin E', 'role': 'user'}, {'content': 'Answer: A \nExplanation: No toxicity has been repoed for Pantothenic acid and Biotin Ref Harrison Internal medicine 20e p2314', 'role': 'assistant'}]