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': "Reduviid bug is a vector for the transmission of - \nSelect and explain. \nA. Relapsing fever, B. Lyme's disease, C. Scrub typhus, D. Chaga's disease", 'role': 'user'}, {'content': "Answer: D \nExplanation: bite by reduviid bug T.cruzi causes South American trypanosomiasis or chaga's disease Chagoma Romana's sign (refer pgno:50 baveja 3 rd edition)", 'role': 'assistant'}]