This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vitamins and Minerals, Subject name: Biochemistry
Iron is absorbed in 
Select and explain. 
A. Stomach, B. Duodenum, C. Jejunum and ileum, D. Colon
B: Duodenum
Answer: B: Duodenum 
Explanation: You should know the site of absorption of the following: