This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: ENT
[{'content': 'Which of the following cancers do not present with cervical lymphnode involvement? \nSelect and explain. \nA. Glottic Cancer, B. Subglottic Cancer, C. Papillary thyroid cancer, D. Oral cancer', 'role': 'user'}, {'content': 'Answer: A \nExplanation: True vocal cords are devoid of lymphatic, hence less chance of cervical nodal metastasis Ref : HAZARIKA 3RD ED.', 'role': 'assistant'}]