This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infectious disease, Subject name: Pediatrics
[{'content': 'The most common manifestation of congenital toxoplasmosis \nSelect and explain. \nA. Deafness, B. Chorioretinitis, C. Hepatosplenomegaly, D. Thrombocytopenia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: *Congenital toxoplasmosis is caused by toxoplasma gondi .The transmissibility increases but the risk of feral disease decreases with advancing pregnancy * The classical triad of toxoplasmosis includes intracranial calcification, hydrocephalus and chorioretinitis. Diagnosis is confirmed by demonstrating IgM in serum of the baby Image : Severe, active retinochoroiditis. Reference : Ghai essential pediatrics, 9 th edition, pgno :264', 'role': 'assistant'}]