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
The most common manifestation of congenital toxoplasmosis 
Select and explain. 
A. Deafness, B. Chorioretinitis, C. Hepatosplenomegaly, D. Thrombocytopenia
B: Chorioretinitis
Answer: B: Chorioretinitis 
Explanation: *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