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
All the following drugs reduced the gastric acid secretion EXCEPT 
Select and explain. 
A. Ranitidine, B. Sucralfate, C. Misoprostal, D. Pantoprazole
B: Sucralfate
Answer: B: Sucralfate 
Explanation: None