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
A patient of chronic renal failure diagnosed with peptic ulcer, which of the following anti peptic ulcer should be given to the patient: 
Select and explain. 
A. Sucralfate., B. Alluminium hydroxide., C. Magnesium hydroxide., D. All of the above.
A: Sucralfate.
Answer: A: Sucralfate. 
Explanation: Antaacids may cause renal insufficiency.