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: ENT
[{'content': "Involvement of neck lymph nodes is seen in all the following except - \nSelect and explain. \nA. Hodgkin's lymphoma, B. Vocal cord carcinoma, C. Tumors of the hypopharynx, D. Nasopharyngeal carcinoma", 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]