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': '"Cystercosis" is caused by : \nSelect and explain. \nA. Taenia solium, B. Taenia saginata, C. Echinococcus, D. None', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Taenia solium', 'role': 'assistant'}]