This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Parasitology, Subject name: Microbiology
[{'content': 'Chagas disease is the parasitic disease affecting intestine, tell the Vector for the same: \nSelect and explain. \nA. Reduvid bug, B. Tse tse fly, C. Sand fly, D. Hard tick', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Reduvid bug(Ref: Chatterjee, 12th/e, p. 52)* T. cruzi (C shaped parasite) causes Chagas disease and vector is reduvid bug.", 'role': 'assistant'}]