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': 'Most common manifestation of congenital toxoplasmosis \nSelect and explain. \nA. Hydrocephalus, B. Chorioretinitis, C. Calcification, D. Convulsions', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Most common - Chorioretinitis\nIn adults - Cervical lymphadenopathy.', 'role': 'assistant'}]