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
Most common tumor to produce metastasis to cervical lymph nodes - 
Select and explain. 
A. Glottic Ca, B. Nasopharyngeal carcinoma, C. Ca Base of tongue, D. Ca lip
B: Nasopharyngeal carcinoma
Answer: B: Nasopharyngeal carcinoma 
Explanation: Ans is "b" i.e. Nasopharyngeal carcinoma Note: Glottic carcinoma never metastasizes to lymph nodes and carcinoma lip metastasizes rarely and very late