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': 'Congenital toxoplasmosis false is - \nSelect and explain. \nA. IgA is better than IgM in detection, B. Diagnosed by detection of IgM in cord blood, C. IgG is diagnostic, D. Encephalitis is uncommon (rare) in immunocompetent individuals', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]