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
Meningomyelocele with progressive hydrocephalus is commonly seen in 
Select and explain. 
A. Arnold chiari II, B. Choroid plexus papilloma, C. Dandy walker malformation, D. Vein of Galen malformation
A: Arnold chiari II
Answer: A: Arnold chiari II 
Explanation: Hydrocephalus + Meningomyelocele ⇒ Seen in Arnold chiari II