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': "Esophageal carcinoma is not predisposed by \nSelect and explain. \nA. Achalasia, B. Scleroderma, C. Corrosive intake, D. barrett's oesophagus", 'role': 'user'}, {'content': 'Answer: B \nExplanation: .common predispositions in developing carcinoma oesophagus includes, *human papillomavirus infection *achalasia cardia (30%) *oesophageal webs (25%) *Barrett&;s oesophagus and also Plummer Vinson syndrome, tylosis, corrosive strictures, and nitrosamines. ref : SRB&;s manual of surgery,5th ed ,pg no 804', 'role': 'assistant'}]