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: Pathology
Tectal breaking is seen in: 
Select and explain. 
A. Dandy-walker malformation, B. Amold-chiari malformation, C. Aqueductal stenosis, D. Third ventricular tumor
B: Amold-chiari malformation
Answer: B: Amold-chiari malformation 
Explanation: . Amold-chiari malformation