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': 'A 61 year old female presents with history of recurrent chest infection, regurgitation of food and feeling of fullness. What is the most probable diagnosis ? \nSelect and explain. \nA. Hiatus hernia, B. Carcinoma esophagus, C. Tracheoesophageal fistula, D. Achlasia cardia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: In carcinoma esophagus and achalasia the prominent symptom is dysphagia and not regurgitation of food. Tracheoesophageal fistula is unlikely to occur in this age group. So we are left with hiatal hernia in which all the above mentioned symptoms are present.', 'role': 'assistant'}]