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: Radiology
Child with "Intracranial Calcification, Chorioretinitis" most appropriate cause is: 
Select and explain. 
A. Toxoplasmosis, B. Herpes simplex, C. CMV, D. Syphilis
A: Toxoplasmosis
Answer: A: Toxoplasmosis 
Explanation: Toxoplasmosis