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
Nodal Metastases is absent in: 
Select and explain. 
A. Supraglottic carcinoma, B. Glottic carcinoma, C. Subglottic carcinoma, D. All of the above
B: Glottic carcinoma
Answer: B: Glottic carcinoma 
Explanation: As vocal cord is free of lymphatics, nodal metastasis is rase in Glottic carcinoma.