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': 'True about Toxoplasma gondii is, it is carried by - \nSelect and explain. \nA. Cats, B. Dogs, C. Rats, D. Cow', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]