This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General, Subject name: Medicine
[{'content': 'Which is the function of below mentioned Tube? \nSelect and explain. \nA. Barium enema, B. Soap water enema, C. Nasogastric feeding, D. Gastric lavage', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. (d) Gastric lavage.', 'role': 'assistant'}]