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': 'Which is not a liver fluke - \nSelect and explain. \nA. Paragoniomus, B. Whipworm, C. Clonorchis sinensis, D. Gnathostoma spinigerum', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Paragonimus westermani-oriental lung fluke Definite host-man, cat , dog,fox,tiger,leopard and monkey First intermediate host-frshwater snail Second intermediate host-freshwater crayfish or a crab (refer pgno:131 baveja 3 rd edition)', 'role': 'assistant'}]