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': 'Vector for Kala-azar- \nSelect and explain. \nA. Flea, B. Tsetse fly, C. Sand fly, D. Tick', 'role': 'user'}, {'content': 'Answer: C \nExplanation: 2 hosts Man and dog-veebrate host Female sandfly of the genus phlebotomous-intermediate host (refer pgno:39 baveja 3 rd edition)', 'role': 'assistant'}]