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
[{'content': 'A 65-year-old smoker presents with hoarseness, hemoptysis and a hard painless lump in the left supraclavicular fossa. Which of the following is the most appropriate diagnostic step - \nSelect and explain. \nA. Undeake an open biopsy of the neck lump, B. Undeake a radical neck dissection, C. Do fine needle aspiration cytology, D. Give a trial of Anti tuberculous therapy', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Undeake an open biopsy of the neck lump", 'role': 'assistant'}]