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': 'Effective ulcer treatment that works by inhibitory action on gastric acid secretion is ? \nSelect and explain. \nA. Lactulose, B. Aluminium hydroxide, C. Sucralfate, D. Ranitidine', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Ranitidine o Among the given options, only ranitidine decreaes acid secretion.", 'role': 'assistant'}]