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: Surgery
Which of the following is false about sideropenic dysphagia 
Select and explain. 
A. Presence of post cricoid webs, B. Increased risk of cancer oesophagus, C. Increased risk of hypopharyngeal carcinoma, D. None of the above
D: None of the above
Answer: D: None of the above 
Explanation: None