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
Acquired extra - cranial infection that causes Aqueductal Stenosis is - 
Select and explain. 
A. Bacterial endocarditis, B. Mumps, C. Measles, D. Staphylococcal septicemia
B: Mumps
Answer: B: Mumps 
Explanation: Ans. is 'b' i.e., Mumps Aqueductal stenosis ? Causes of acquired aqueductal stenosis o Neonatal meningitis o Intrauterine viral infections o Subarachnoid hemorrhage o Mumps meningoencephalitis