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': 'An 18 yr old male presents with massive hematemesis, he has history of fever for the past 14 days for which he was managed with drugs, moderate spleenomegaly is present, diagnosis is - \nSelect and explain. \nA. NSAID induced duodenal ulcer, B. Drug induced gastritis, C. Esophageal varices, D. None of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]