This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
[{'content': 'Water brash indicates one of the following(NOT RELATED-SURGERY) \nSelect and explain. \nA. Dyspepsia, B. Indigestion, C. Peptic ulcer, D. Duodenal ulcer', 'role': 'user'}, {'content': 'Answer: C \nExplanation: .', 'role': 'assistant'}]