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: Microbiology
[{'content': "Romana's sign is seen is \nSelect and explain. \nA. T. Brucei Gambiense, B. T. Brucei Rhodesiense, C. T. Cruzi, D. None of the above", 'role': 'user'}, {'content': "Answer: C \nExplanation: Romana's sign - Periorbital edema seen in Trypanosoma Cruzi.", 'role': 'assistant'}]