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': 'Cerebral amaebiasis is not caused by: \nSelect and explain. \nA. Naegleria, B. Dientamoeba, C. Acanthamoeba, D. Balamuthia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. c. Dientamoeba', 'role': 'assistant'}]