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': '"Erythema chronicum migrans" is caused by - \nSelect and explain. \nA. B. burgdorferi, B. Toxoplasma gondii, C. Toxocara canis, D. Stronglyloides stercoralis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]