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': 'The most common and earliest manifestation of carcinoma of the glottis is - \nSelect and explain. \nA. Hoarseness, B. Haemoptysis, C. Cervical lymph nodes, D. Stridor', 'role': 'user'}, {'content': 'Answer: A \nExplanation: In glottic cancer.\n“Hoarseness of voice is an early sign because lesion of cord affects its vibratory capacity.”', 'role': 'assistant'}]