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
The vitamin that facilitates iron absorption: 
Select and explain. 
A. Folic acid, B. Ascorbic acid, C. Biotin, D. Para amino benzoic acid
B: Ascorbic acid
Answer: B: Ascorbic acid 
Explanation: None