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
In classical radical dissection of neck (Crile), which structure is NOT removed: September 2004 
Select and explain. 
A. Cervical group of lymph nodes, B. Sternocleidomastoid muscle, C. Internal jugular vein, D. None of the above
D: None of the above
Answer: D: None of the above 
Explanation: Ans. D i.e. None of the above