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 Radical mastectomy, which is spared- 
Select and explain. 
A. Pectorialis major, B. Pectoralis minor, C. Axillary lymph nodes, D. Supraclavicular lymph nodes
D: Supraclavicular lymph nodes
Answer: D: Supraclavicular lymph nodes 
Explanation: None