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
"Liquefactive" Necrosis as a primary even is most often seen in: 
Select and explain. 
A. Kidneys, B. CNS, C. Spleen, D. Liver
B: CNS
Answer: B: CNS 
Explanation: CNS