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': 'A patient presented with hoarseness of voice. He was found to be having pachydermia laryngitis. All of the following are true except - \nSelect and explain. \nA. It is a hyperkeratotic lesion present within the anterior 2/3rd of the vocal cords, B. It is not premalignant lesion, C. Diagnosis is made by biopsy, D. On microscopy it shows acanthosis and hyperkeratosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]