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: Pediatrics
Which micro–organism is responsible for classical presentation of hydrocephalus, chorioretinitis, intracerebral calcification ? 
Select and explain. 
A. Toxoplasmosis, B. Rubella, C. Measles, D. CMV
A: Toxoplasmosis
Answer: A: Toxoplasmosis 
Explanation: None