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
[{'content': 'Which of the following is false about sideropenic dysphagia \nSelect and explain. \nA. Presence of post cricoid webs, B. Increased risk of cancer oesophagus, C. Increased risk of hypopharyngeal carcinoma, D. None of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]