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': 'Schistosoma japonicum resides in - \nSelect and explain. \nA. Vesical Plexus, B. Splenic Vein, C. Systemic Circulation, D. Gall bladder', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Habitat\n\nS. hematobium: Vesicle plexus (veins of urinary bladder, pelvis ureter)\nS. mansoni: Inferior mesentric plexus\nS. japonicum: Superior mesentric plexus and its radicles (splenic vein).', 'role': 'assistant'}]