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
Neurotoxicity is seen with excess of ? 
Select and explain. 
A. Vitamin B6, B. Vitamin B12, C. Vitamin B2, D. Vitamin C
A: Vitamin B6
Answer: A: Vitamin B6 
Explanation: Ans. is 'a' i.e., Vitamin B6