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: Medicine
Cytoprotective drug in peptic ulcer is - 
Select and explain. 
A. Omeprazole, B. Ranitidine, C. Magnesium hydroxide, D. Sucralfate
D: Sucralfate
Answer: D: Sucralfate 
Explanation: <p>Davidson&;s principles and practice of medicine 22nd edition. *it is ulcer protective polymerase at pH less than 4 assuming a sticky cell like consistency. It acts as a physical barrier preventing acid,peptin and bile from coming in contact with ulcer base.</p>