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': "All of the following are features of Verrill's sign except: \nSelect and explain. \nA. Partial ptosis., B. Tingling sensation., C. Blurring vision., D. Slurring speech.", 'role': 'user'}, {'content': 'Answer: B \nExplanation: The three features of Verrill’s sign are:\n\nPartial ptosis (50%).\nBlurring vision\nSlurring speech that indicate the correct level after Diazepam sedation', 'role': 'assistant'}]