This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urology, Subject name: Surgery
[{'content': 'Moures sign is seen in \nSelect and explain. \nA. Carcinoma, B. Appendicitis, C. Varicose vein, D. Pancreatitis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Moure's sign: in normal persons, there is a click felt when the larynx is moved from side to side over the veebral column. This sign is absent in patients with post-cricoid carcinoma (Moure's sig n positive).", 'role': 'assistant'}]