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
[{'content': 'Which micro–organism is responsible for classical presentation of hydrocephalus, chorioretinitis, intracerebral calcification ? \nSelect and explain. \nA. Toxoplasmosis, B. Rubella, C. Measles, D. CMV', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]