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': 'Trypanosoma cruzi is transmitted by: \nSelect and explain. \nA. Tse tse fly, B. Reduviid bug, C. Culex mosquito, D. Sand fly', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. a. Tse tse fly', 'role': 'assistant'}]