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: Pharmacology
[{'content': 'A patient of chronic renal failure diagnosed with peptic ulcer, which of the following anti peptic ulcer should be given to the patient: \nSelect and explain. \nA. Sucralfate., B. Alluminium hydroxide., C. Magnesium hydroxide., D. All of the above.', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Antaacids may cause renal insufficiency.', 'role': 'assistant'}]