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: Surgery
Supraomohyoid neck dissection includes removal of: 
Select and explain. 
A. Level I - IV Lymph nodes, B. Level II - V Lymph nodes, C. Level I - III Lymph nodes, D. Level II - IV Lymph nodes
C: Level I - III Lymph nodes
Answer: C: Level I - III Lymph nodes 
Explanation: None