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: Surgery
[{'content': "Which one of the following conditions is diagnosed by T99 Pertechnetate Scintigraphy? \nSelect and explain. \nA. Pharyngeal diverticulum, B. Duodenal diverticulum, C. Meckel's diverticulum, D. Colonic diverticulum", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]