This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Glycolysis, Subject name: Biochemistry
Oxidation of lactate to pyruvate requires which vitamin - 
Select and explain. 
A. Riboflavin, B. Niacin, C. Folic acid, D. Biotin
B: Niacin
Answer: B: Niacin 
Explanation: Ans. is 'b' i.e., Niacin o Niacin is required as NAD+