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': 'Punctuate yellow exudates in colon, found on endoscopic examiantion are indicative of \nSelect and explain. \nA. Balantidium coli, B. Ulceratice colitis, C. Antibiotic colitis, D. Gluten induced enteropathy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]