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: Pathology
Iron absorption is decreased by A/E- 
Select and explain. 
A. Calcium, B. Tetracycline, C. Phytate, D. Ascorbic acid
D: Ascorbic acid
Answer: D: Ascorbic acid 
Explanation: Ans. is 'd' i.e., Ascorbic acid