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': '"Primary Amebic Meningoencephalitis" is caused by: \nSelect and explain. \nA. Naeglaria, B. Giardia, C. Actinomyces, D. Anthrax', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Naeglaria', 'role': 'assistant'}]