This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
[{'content': 'All are features of Plummer-Vinson syndrome Except \nSelect and explain. \nA. Oesophageal web, B. Iron deficiency, C. Achalasia cardia, D. Dysphagia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Dysphagia is said to occur because of the presence of post-cricoid web that is associated with iron deficiency anaemia, glossitis and koilonychia Bailey and Love&;s sho practice of surgery,26 th ed.', 'role': 'assistant'}]