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: Unknown
In cervical lymph node classification, grade VI is marginated at which level? 
Select and explain. 
A. Submandibular, B. Anterior compament, C. Upper jugular, D. Posterior triangle
B: Anterior compament
Answer: B: Anterior compament 
Explanation: Division of Lymph Nodes by Levels