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: Medicine
[{'content': 'Which is not true about erosive gastritis -a) Endoscopy is investigation of choiceb) Pain is absentc) It may be drug inducedd) Barium meal may clinch the diagnosis \nSelect and explain. \nA. ac, B. ad, C. ab, D. bd', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]