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': 'Swollen belly syndrome is caused by \nSelect and explain. \nA. Strongyloides stercoralis, B. Stongyloides fuelleborni, C. Necator Americanus, D. Ancyclostoma duodenale', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Strongyloides Fuelleborni causes swollen belly syndrome.', 'role': 'assistant'}]