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': 'Hydatid disease of liver is caused by -a) Strongloidesb) Echinococcus granulosusc) Taenia soliumd) Trichinella spiralise) Echinococcus multilocularis \nSelect and explain. \nA. ab, B. be, C. bc, D. ce', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Hydatid disease:\n\nEchinococcus granulosus: Causes Hydatid disease—Hepatomegaly (60—70% of cases), then lungs\nE. multilocularis: Causes Alveolar Hydatid disease (90%-liver involvement)\nE. oligarthrus and E.vogeli: Causes Polycystic Hydatid disease.', 'role': 'assistant'}]