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
Avidin influences which of the following vitamins? 
Select and explain. 
A. Biotin, B. Niacin, C. Thiamine, D. Phylloquinone
A: Biotin
Answer: A: Biotin 
Explanation: None