This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Blood, Subject name: Pathology
NOT true regarding Iron metabolism 
Select and explain. 
A. Ascorbic acid promotes absorption, B. Absorption takes place in the terminal ileum, C. Phytates inhibit absorption, D. Most of iron is incorporated into red blood cells
B: Absorption takes place in the terminal ileum
Answer: B: Absorption takes place in the terminal ileum 
Explanation: (Absorption takes place in the terminal ileum): ( /edition)* Iron is mainly absorbed in the stomach and duodenum* In normal people about 10% of dietary iron is usually absorbed* Ferrous form is soluble and readily absorbedFactors affecting Fe absorption (414-15. U. Satycmarayan 4th)1. Acidity, ascorbic acid, alcohol fructose and cysteine promotes iron absorption2. In iron deficiency anemia, Fe absorption is increased to 2-10 tims that of normal3. Small peptides and amino acids favour iron uptake4. Phytate (found in cereals) and oxalate (found in leafy vegetables) interfere with Fe absorption5. A diet with high phosphate content decreases Fe absorption while low phosphate promotes6. Impaired absorption of iron is absorbed in malabsorption of stomach and/or intestine, iron absorption is severely impaired* Normally the loss of iron from the body of a man is limited to 1 mg per day