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': 'Neurotoxicity is seen with excess of - \nSelect and explain. \nA. VitaminB6, B. Vitamin B12, C. Vitamin B2, D. VitaminC', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. is \'a\' i.e.. Vitamin B6 "There are reports of neurotoxicity of high doses of Vitamin B6 "_________Textbook of environment & nutrition', 'role': 'assistant'}]