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: Physiology
Iron absorption is inhibited by ? 
Select and explain. 
A. Ascorbic acid, B. Vitamin C, C. Hepcidin, D. All of the above
C: Hepcidin
Answer: C: Hepcidin 
Explanation: Ans. is 'c' i.e., Hepcidin